diff --git a/CrossPlatformModules.csproj b/CrossPlatformModules.csproj
index eca1d024d..4d9d50f01 100644
--- a/CrossPlatformModules.csproj
+++ b/CrossPlatformModules.csproj
@@ -513,10 +513,6 @@
     </TypeScriptCompile>
     <TypeScriptCompile Include="ui\text-view\text-view.d.ts" />
     <TypeScriptCompile Include="utils\android_constants.ts" />
-    <TypeScriptCompile Include="utils\containers.d.ts" />
-    <TypeScriptCompile Include="utils\containers.ts">
-      <DependentUpon>containers.d.ts</DependentUpon>
-    </TypeScriptCompile>
     <TypeScriptCompile Include="utils\module-merge.ts" />
     <TypeScriptCompile Include="utils\utils.android.ts">
       <DependentUpon>utils.d.ts</DependentUpon>
diff --git a/apps/tests/pages/page17.xml b/apps/tests/pages/page17.xml
index fe7e9d1f2..a1bd0a0c2 100644
--- a/apps/tests/pages/page17.xml
+++ b/apps/tests/pages/page17.xml
@@ -1,7 +1,7 @@
 <Page loaded="pageLoaded">
   <Page.optionsMenu>
-    <MenuItem text="test" tap="optionTap"/>
-    <MenuItem text="with icon" tap="optionTap" icon="~/app/test-icon.png"/>
+    <MenuItem text="test" tap="optionTap" android.position="popup" />
+    <MenuItem text="with icon" tap="optionTap" icon="~/app/test-icon.png" android.position="actionBar" />
   </Page.optionsMenu>
   <StackLayout>
     <Button text="button" />
diff --git a/apps/tests/ui/page/page-tests-common.ts b/apps/tests/ui/page/page-tests-common.ts
index ef04d515e..6daf6eac7 100644
--- a/apps/tests/ui/page/page-tests-common.ts
+++ b/apps/tests/ui/page/page-tests-common.ts
@@ -34,6 +34,73 @@ export function addLabelToPage(page: PageModule.Page, text?: string) {
     page.content = label;
 }
 
+export function test_menuItem_inherit_bindingContext() {
+
+    var page: PageModule.Page;
+    var label: LabelModule.Label;
+    var context = { text: "item" };
+
+    var pageFactory = function (): PageModule.Page {
+        page = new PageModule.Page();
+        page.bindingContext = context;
+        var menuItem = new PageModule.MenuItem();
+
+        menuItem.bind({
+            sourceProperty: "text",
+            targetProperty: "text"
+        });
+
+        page.optionsMenu.addItem(menuItem);
+
+        label = new LabelModule.Label();
+        label.text = "Text";
+        page.content = label;
+        return page;
+    };
+
+    helper.navigate(pageFactory);
+
+    try {
+        TKUnit.assertEqual(page.optionsMenu.getItemAt(0).text, "item", "menuItem.text should equal to 'item'");
+    }
+    finally {
+        helper.goBack();
+    }
+}
+
+export function test_Setting_OptionsMenu_doesnt_thrown() {
+
+    var page: PageModule.Page;
+    var label: LabelModule.Label;
+    var gotException = false;
+
+    var pageFactory = function (): PageModule.Page {
+        page = new PageModule.Page();
+        var menuItem = new PageModule.MenuItem();
+        menuItem.text = "Item";
+        page.optionsMenu.addItem(menuItem);
+
+        label = new LabelModule.Label();
+        label.text = "Text";
+        page.content = label;
+        return page;
+    };
+
+    try {
+        helper.navigate(pageFactory);
+    }
+    catch (e) {
+        gotException = true;
+    }
+
+    try {
+        TKUnit.assert(!gotException, "Expected: false, Actual: " + gotException);
+    }
+    finally {
+        helper.goBack();
+    }
+}
+
 export function test_AfterPageLoaded_is_called_NativeInstance_is_created() {
 
     var page: PageModule.Page;
diff --git a/apps/tests/ui/page/page-tests.ios.ts b/apps/tests/ui/page/page-tests.ios.ts
index 8d8cdee26..8c035dafe 100644
--- a/apps/tests/ui/page/page-tests.ios.ts
+++ b/apps/tests/ui/page/page-tests.ios.ts
@@ -3,11 +3,12 @@ import PageModule = require("ui/page");
 import TKUnit = require("../../TKUnit");
 import LabelModule = require("ui/label");
 import helper = require("../helper");
+import view = require("ui/core/view");
 
 declare var exports;
 require("utils/module-merge").merge(PageTestCommon, exports);
 
-export var test_NavigateToNewPage_InnerControl = function () {
+export function test_NavigateToNewPage_InnerControl() {
     var testPage: PageModule.Page;
     var pageFactory = function (): PageModule.Page {
         testPage = new PageModule.Page();
@@ -24,3 +25,38 @@ export var test_NavigateToNewPage_InnerControl = function () {
     TKUnit.assert(label.android === undefined, "InnerControl.android should be undefined after navigate back.");
     TKUnit.assert(label.isLoaded === false, "InnerControl.isLoaded should become false after navigating back");
 }
+
+export function test_NavBar_isVisible_when_MenuItems_areSet() {
+
+    var page: PageModule.Page;
+    var label: LabelModule.Label;
+    var navBarIsVisible = false;
+
+    var handler = function (data) {
+        page.off(view.knownEvents.loaded, handler);
+        navBarIsVisible = (<any>page.frame.ios).showNavigationBar;
+    }
+
+    var pageFactory = function (): PageModule.Page {
+        page = new PageModule.Page();
+        page.on(view.knownEvents.loaded, handler);
+
+        var mi = new PageModule.MenuItem();
+        mi.text = "B";
+        page.optionsMenu.addItem(mi);
+        label = new LabelModule.Label();
+        label.text = "Text";
+        page.content = label;
+        return page;
+    };
+
+    helper.navigate(pageFactory);
+
+    try {
+        TKUnit.assert(navBarIsVisible, "Expected: true, Actual: " + navBarIsVisible);
+    }
+    finally {
+        page.off(view.knownEvents.loaded, handler);
+        helper.goBack();
+    }
+}
\ No newline at end of file
diff --git a/ui/builder/component-builder.ts b/ui/builder/component-builder.ts
index 86d8f4e6c..5f612bf1e 100644
--- a/ui/builder/component-builder.ts
+++ b/ui/builder/component-builder.ts
@@ -66,7 +66,7 @@ export function getComponentModule(elementName: string, namespace: string, attri
         // Create instance of the component.
         instance = new instanceType();
     } catch (ex) {
-        throw new Error("Cannot create module " + moduleId + ". " + ex);
+        throw new Error("Cannot create module " + moduleId + ". " + ex + ". StackTrace: " + ex.stack);
     }
 
     if (instance && instanceModule) {
diff --git a/ui/button/button.ios.ts b/ui/button/button.ios.ts
index 02fd85aed..e0d8df868 100644
--- a/ui/button/button.ios.ts
+++ b/ui/button/button.ios.ts
@@ -20,7 +20,6 @@ class TapHandlerImpl extends NSObject {
     public static ObjCExposedMethods = {
         "tap": { returns: interop.types.void, params: [interop.types.id] }
     };
-
 }
 
 // merge the exports of the common file with the exports of this file
diff --git a/ui/enums/enums.d.ts b/ui/enums/enums.d.ts
index 4d736060b..ca2dc60f8 100644
--- a/ui/enums/enums.d.ts
+++ b/ui/enums/enums.d.ts
@@ -9,25 +9,25 @@
          * iOS:  [UIKeyboardTypeNumbersAndPunctuation](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIKeyboardType)
          */
         export var datetime: string;
-
+        
         /**
          * Android: [TYPE_CLASS_PHONE](http://developer.android.com/reference/android/text/InputType.html#TYPE_CLASS_PHONE)
          * iOS:  [UIKeyboardTypePhonePad](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIKeyboardType)
          */
         export var phone: string;
-
+        
         /**
          * Android: [TYPE_CLASS_NUMBER](http://developer.android.com/reference/android/text/InputType.html#TYPE_CLASS_NUMBER) | android.text.InputType.TYPE_NUMBER_VARIATION_NORMAL | [TYPE_NUMBER_FLAG_SIGNED](http://developer.android.com/reference/android/text/InputType.html#TYPE_NUMBER_FLAG_SIGNED) | [TYPE_NUMBER_FLAG_DECIMAL](http://developer.android.com/reference/android/text/InputType.html#TYPE_NUMBER_FLAG_DECIMAL)
          * iOS:  [UIKeyboardTypeNumbersAndPunctuation](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIKeyboardType)
          */
         export var number: string;
-
+        
         /**
          * Android: [TYPE_CLASS_TEXT](http://developer.android.com/reference/android/text/InputType.html#TYPE_CLASS_TEXT) | [TYPE_TEXT_VARIATION_URI](http://developer.android.com/reference/android/text/InputType.html#TYPE_TEXT_VARIATION_URI)
          * iOS:  [UIKeyboardTypeURL](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIKeyboardType)
          */
         export var url: string;
-
+        
         /**
          * Android: [TYPE_CLASS_TEXT](http://developer.android.com/reference/android/text/InputType.html#TYPE_CLASS_TEXT) | [TYPE_TEXT_VARIATION_EMAIL_ADDRESS](http://developer.android.com/reference/android/text/InputType.html#TYPE_TEXT_VARIATION_EMAIL_ADDRESS)
          * iOS:  [UIKeyboardTypeEmailAddress](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIKeyboardType)
@@ -56,13 +56,13 @@
          * iOS: [UIReturnKeyGo](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIReturnKeyType)
          */
         export var go: string;
-
+        
         /**
          * Android: [IME_ACTION_SEARCH](http://developer.android.com/reference/android/view/inputmethod/EditorInfo.html#IME_ACTION_SEARCH)
          * iOS: [UIReturnKeySearch](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIReturnKeyType)
          */
         export var search: string;
-
+        
         /**
          * Android: [IME_ACTION_SEND](http://developer.android.com/reference/android/view/inputmethod/EditorInfo.html#IME_ACTION_SEND)
          * iOS: [UIReturnKeySend](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextInputTraits_Protocol/index.html#//apple_ref/c/tdef/UIReturnKeyType)
@@ -304,7 +304,7 @@
          * Capitalize the first letter of each sentence automatically. 
          */
         export var sentences: string;
-
+        
         /**
          * Capitalize all characters automatically. 
          */
@@ -325,4 +325,44 @@
          */
         export var jpeg: string;
     }
-} 
+
+    /**
+     * Specifies NavigationBar visibility mode.
+     */
+    module NavigationBarVisibility {
+        /**
+         * NavigationBar will be visible if there if frame backstack canGoBack is true or Page have optionsMenu with menuItems.
+         */
+        export var auto: string;
+
+        /**
+         * NavigationBar will be hidden.
+         */
+        export var never: string;
+
+        /**
+         * NavigationBar will be visible.
+         */
+        export var always: string;
+    }
+
+    /**
+     * Specifies android MenuItem position.
+     */
+    module MenuItemPosition {
+        /**
+         * Always show this item as a button in an Action Bar.
+         */
+        export var actionBar: string;
+
+        /**
+         * Show this item as a button in an Action Bar if the system decides there is room for it.
+         */
+        export var actionBarIfRoom: string;
+
+        /**
+         * Never show this item as a button in an Action Bar.
+         */
+        export var popup: string;
+    }
+}
\ No newline at end of file
diff --git a/ui/enums/enums.ts b/ui/enums/enums.ts
index 1e0547bf9..d88744313 100644
--- a/ui/enums/enums.ts
+++ b/ui/enums/enums.ts
@@ -86,7 +86,19 @@ export module AutocapitalizationType {
     export var allCharacters: string = "allCharacters";
 }
 
+export module NavigationBarVisibility {
+    export var auto: string = "auto";
+    export var never: string = "never";
+    export var always: string = "always";
+}
+
+export module MenuItemPosition {
+    export var actionBar: string = "actionBar";
+    export var actionBarIfRoom: string = "actionBarIfRoom";
+    export var popup: string = "popup";
+}
+
 export module ImageFormat {
     export var png: string = "png";
     export var jpeg: string = "jpeg";
-}
+}
\ No newline at end of file
diff --git a/ui/frame/frame-common.ts b/ui/frame/frame-common.ts
index 7122f7d76..a569761a6 100644
--- a/ui/frame/frame-common.ts
+++ b/ui/frame/frame-common.ts
@@ -270,7 +270,7 @@ export class Frame extends view.CustomLayoutView implements definition.Frame {
     }
 
     get backStack(): Array<definition.BackstackEntry> {
-        return this._backStack;
+        return this._backStack.slice();
     }
 
     get currentPage(): pages.Page {
diff --git a/ui/frame/frame.android.ts b/ui/frame/frame.android.ts
index dee5d7fc6..412a992c6 100644
--- a/ui/frame/frame.android.ts
+++ b/ui/frame/frame.android.ts
@@ -7,6 +7,7 @@ import utils = require("utils/utils");
 import view = require("ui/core/view");
 import application = require("application");
 import imageSource = require("image-source");
+import enums = require("ui/enums");
 
 declare var exports;
 require("utils/module-merge").merge(frameCommon, exports);
@@ -143,14 +144,29 @@ class PageFragmentBody extends android.app.Fragment {
 
         for (var i = 0; i < items.length; i++) {
             var item = items[i];
-            var menuItem = menu.add(android.view.Menu.NONE, i, item.priority, item.text);
+            var menuItem = menu.add(android.view.Menu.NONE, i, android.view.Menu.NONE, item.text);
             if (item.icon) {
-                var img = imageSource.fromFile(item.icon);
+                var img = imageSource.fromResource(item.icon);
                 var drawable = new android.graphics.drawable.BitmapDrawable(img.android);
                 menuItem.setIcon(drawable);
             }
 
-            menuItem.setShowAsAction(android.view.MenuItem.SHOW_AS_ACTION_ALWAYS);
+            var showAsAction = PageFragmentBody.getShowAsAction(item);
+            menuItem.setShowAsAction(showAsAction);
+        }
+    }
+
+    private static getShowAsAction(menuItem: pages.MenuItem): number {
+        switch (menuItem.android.position) {
+            case enums.MenuItemPosition.actionBarIfRoom:
+                return android.view.MenuItem.SHOW_AS_ACTION_IF_ROOM;
+
+            case enums.MenuItemPosition.popup:
+                return android.view.MenuItem.SHOW_AS_ACTION_NEVER;
+
+            case enums.MenuItemPosition.actionBar:
+            default:
+                return android.view.MenuItem.SHOW_AS_ACTION_ALWAYS;
         }
     }
 
@@ -462,7 +478,7 @@ class NativeActivity extends com.tns.NativeScriptActivity {
         trace.write("NativeScriptActivity.onDestroy();", trace.categories.NativeLifecycle);
     }
 
-    onOptionsItemSelected(menuItem) {
+    onOptionsItemSelected(menuItem: android.view.IMenuItem) {
         if (!this.androidFrame.hasListeners(frameCommon.knownEvents.android.optionSelected)) {
             return false;
         }
@@ -638,10 +654,11 @@ function findPageForFragment(fragment: android.app.Fragment, frame: Frame) {
         trace.write("Current page matches fragment: " + fragmentTag, trace.categories.NativeLifecycle);
     }
     else {
-        for (var i = 0; i < frame.backStack.length; i++) {
-            entry = frame.backStack[i];
-            if (frame.backStack[i].resolvedPage[TAG] === fragmentTag) {
-                entry = frame.backStack[i];
+        var backStack = frame.backStack;
+        for (var i = 0; i < backStack.length; i++) {
+            entry = backStack[i];
+            if (backStack[i].resolvedPage[TAG] === fragmentTag) {
+                entry = backStack[i];
                 break;
             }
         }
diff --git a/ui/frame/frame.d.ts b/ui/frame/frame.d.ts
index 880c82567..9ddf69a6f 100644
--- a/ui/frame/frame.d.ts
+++ b/ui/frame/frame.d.ts
@@ -145,7 +145,7 @@ declare module "ui/frame" {
         /**
          * Gets the Android-specific menu item that has been selected.
          */
-        item: android.view.MenuItem;
+        item: android.view.IMenuItem;
 
         /**
          * True to mark the event as handled (that is to prevent the default processing).
@@ -207,6 +207,12 @@ declare module "ui/frame" {
          * Gets the native [UINavigationController](https://developer.apple.com/library/prerelease/ios/documentation/UIKit/Reference/UINavigationController_Class/index.html) instance associated with this Frame.
          */
         controller: UINavigationController;
+
+        /**
+         * Gets or sets the visibility of navigationBar.
+         * Use NavBarVisibility enumeration - auto, never, always
+         */
+        navBarVisibility: string;
     }
 
     /**
diff --git a/ui/frame/frame.ios.ts b/ui/frame/frame.ios.ts
index a6019ea8f..c018cc505 100644
--- a/ui/frame/frame.ios.ts
+++ b/ui/frame/frame.ios.ts
@@ -1,6 +1,9 @@
 import frameCommon = require("ui/frame/frame-common");
 import definition = require("ui/frame");
 import trace = require("trace");
+import imageSource = require("image-source");
+import pages = require("ui/page");
+import enums = require("ui/enums");
 
 declare var exports;
 require("utils/module-merge").merge(frameCommon, exports);
@@ -12,6 +15,7 @@ var navDepth = 0;
 export class Frame extends frameCommon.Frame {
     private _ios: iOSFrame;
     private _paramToNavigate: any;
+    public shouldSkipNativePop: boolean = false;
 
     constructor() {
         super();
@@ -35,7 +39,7 @@ export class Frame extends frameCommon.Frame {
             this._paramToNavigate = param;
         }
     }
-
+    
     public _navigateCore(backstackEntry: definition.BackstackEntry) {
         var viewController = backstackEntry.resolvedPage.ios;
         if (!viewController) {
@@ -47,9 +51,7 @@ export class Frame extends frameCommon.Frame {
             animated = this._getIsAnimatedNavigation(backstackEntry.entry);
         }
 
-        if (this.backStack.length > 0) {
-            this._ios.showNavigationBar = true;
-        }
+        this.updateNavigationBar();
 
         viewController[ENTRY] = backstackEntry;
 
@@ -61,17 +63,29 @@ export class Frame extends frameCommon.Frame {
     public _goBackCore(entry: definition.NavigationEntry) {
         navDepth--;
         trace.write("Frame<" + this._domId + ">.popViewControllerAnimated depth = " + navDepth, trace.categories.Navigation);
-
-        this._ios.controller.allowPop = true;
-        this._ios.controller.popViewControllerAnimated(this._getIsAnimatedNavigation(entry));
-        this._ios.controller.allowPop = false;
-
-        if (this.backStack.length === 0) {
-            this._ios.showNavigationBar = false;
+        if (!this.shouldSkipNativePop) {
+            this._ios.controller.popViewControllerAnimated(this._getIsAnimatedNavigation(entry));
         }
     }
 
-    public get ios(): any {
+    public updateNavigationBar(page?: pages.Page): void {
+        switch (this._ios.navBarVisibility) {
+            case enums.NavigationBarVisibility.always:
+                this._ios.showNavigationBar = true;
+                break;
+
+            case enums.NavigationBarVisibility.never:
+                this._ios.showNavigationBar = false;
+                break;
+
+            case enums.NavigationBarVisibility.auto:
+                var pageInstance: pages.Page = page || this.currentPage;
+                this._ios.showNavigationBar = this.backStack.length > 0 || (pageInstance && pageInstance.optionsMenu.getItems().length > 0);
+                break;
+        }
+    }
+
+    public get ios(): iOSFrame {
         return this._ios;
     }
 
@@ -122,9 +136,41 @@ export class Frame extends frameCommon.Frame {
         var navigationBar = this._ios.controller.navigationBar;
         return (navigationBar && !this._ios.controller.navigationBarHidden) ? navigationBar.frame.size.height : 0;
     }
+
+    public _invalidateOptionsMenu() {
+        this.populateMenuItems(this.currentPage);
+    }
+
+    populateMenuItems(page: pages.Page) {
+        var items = page.optionsMenu.getItems();
+
+        var navigationItem: UINavigationItem = (<UIViewController>page.ios).navigationItem;
+        var array: NSMutableArray = items.length > 0 ? NSMutableArray.new() : null;
+
+        for (var i = 0; i < items.length; i++) {
+            var item = items[i];
+            var tapHandler = TapBarItemHandlerImpl.new().initWithOwner(item);
+            // associate handler with menuItem or it will get collected by JSC.
+            (<any>item).handler = tapHandler;
+
+            var barButtonItem: UIBarButtonItem;
+            if (item.icon) {
+                var img = imageSource.fromResource(item.icon);
+                barButtonItem = UIBarButtonItem.alloc().initWithImageStyleTargetAction(img.ios, UIBarButtonItemStyle.UIBarButtonItemStylePlain, tapHandler, "tap");
+            }
+            else {
+                barButtonItem = UIBarButtonItem.alloc().initWithTitleStyleTargetAction(item.text, UIBarButtonItemStyle.UIBarButtonItemStylePlain, tapHandler, "tap");
+            }
+
+            array.addObject(barButtonItem);
+        }
+
+        if (array) {
+            navigationItem.setRightBarButtonItemsAnimated(array, true);
+        }
+    }
 }
 
-/* tslint:disable */
 class UINavigationControllerImpl extends UINavigationController implements UINavigationControllerDelegate {
     public static ObjCProtocols = [UINavigationControllerDelegate];
 
@@ -132,21 +178,13 @@ class UINavigationControllerImpl extends UINavigationController implements UINav
         return <UINavigationControllerImpl>super.new();
     }
 
-    private _owner: frameCommon.Frame;
-    
-    public initWithOwner(owner: frameCommon.Frame): UINavigationControllerImpl {
+    private _owner: Frame;
+
+    public initWithOwner(owner: Frame): UINavigationControllerImpl {
         this._owner = owner;
         return this;
     }
 
-    private _allowPop: boolean;
-    public get allowPop(): boolean {
-        return this._allowPop;
-    }
-    public set allowPop(value: boolean) {
-        this._allowPop = value;
-    }
-    
     public viewDidLoad(): void {
         this.view.autoresizesSubviews = false;
         this.view.autoresizingMask = UIViewAutoresizing.UIViewAutoresizingNone;
@@ -158,39 +196,37 @@ class UINavigationControllerImpl extends UINavigationController implements UINav
         this._owner._updateLayout();
     }
 
-    public popViewControllerAnimated(animated: boolean): UIViewController {
-        if (this.allowPop) {
-            return super.popViewControllerAnimated(animated);
-        }
-        else {
-            var currentControler = this._owner.currentPage.ios;
-            this._owner.goBack();
-            return currentControler;
-        }
-    }
+    public navigationControllerDidShowViewControllerAnimated(navigationController: UINavigationController, viewController: UIViewController, animated: boolean): void {
+
+        var frame: Frame = this._owner;
+        var backStack = frame.backStack;
+        var currentEntry = backStack.length > 0 ? backStack[backStack.length - 1] : null;
+        var newEntry: definition.BackstackEntry = viewController[ENTRY];
+
+        if (newEntry === currentEntry && currentEntry) {
+            try {
+                frame.shouldSkipNativePop = true;
+                frame.goBack();
+            }
+            finally {
+                frame.shouldSkipNativePop = false;
+            }
+        }
 
-    public navigationControllerWillShowViewControllerAnimated(navigationController: UINavigationController, viewController: UIViewController, animated: boolean): void {
-        var frame = this._owner;
         var page = frame.currentPage;
         if (page) {
             frame._removeView(page);
         }
 
-        var newEntry: definition.BackstackEntry = viewController[ENTRY];
         var newPage = newEntry.resolvedPage;
 
         frame._currentEntry = newEntry;
         frame._addView(newPage);
-
+        frame.populateMenuItems(newPage);
+        frame.updateNavigationBar();
+        
         // notify the page
         newPage.onNavigatedTo(newEntry.entry.context);
-    }
-
-    public navigationControllerDidShowViewControllerAnimated(navigationController: UINavigationController, viewController: UIViewController, animated: boolean): void {
-        var frame: frameCommon.Frame = this._owner;
-        var newEntry: definition.BackstackEntry = viewController[ENTRY];
-        var newPage = newEntry.resolvedPage;
-
         frame._processNavigationQueue(newPage);
     }
 
@@ -199,16 +235,19 @@ class UINavigationControllerImpl extends UINavigationController implements UINav
     }
 }
 
+/* tslint:disable */
 class iOSFrame implements definition.iOSFrame {
-    /* tslint:enable */
+/* tslint:enable */
     private _controller: UINavigationControllerImpl;
     private _showNavigationBar: boolean;
+    private _navBarVisibility: string;
 
-    constructor(owner: frameCommon.Frame) {
+    constructor(owner: Frame) {
         this._controller = UINavigationControllerImpl.new().initWithOwner(owner);
         this._controller.delegate = this._controller;
         this._controller.automaticallyAdjustsScrollViewInsets = false;
         this.showNavigationBar = false;
+        this._navBarVisibility = enums.NavigationBarVisibility.auto;
     }
 
     public get controller() {
@@ -222,4 +261,32 @@ class iOSFrame implements definition.iOSFrame {
         this._showNavigationBar = value;
         this._controller.navigationBarHidden = !value;
     }
-} 
\ No newline at end of file
+
+    public get navBarVisibility(): string {
+        return this._navBarVisibility;
+    }
+    public set navBarVisibility(value: string) {
+        this._navBarVisibility = value;
+    }
+}
+
+class TapBarItemHandlerImpl extends NSObject {
+    static new(): TapBarItemHandlerImpl {
+        return <TapBarItemHandlerImpl>super.new();
+    }
+
+    private _owner: pages.MenuItem;
+
+    public initWithOwner(owner: pages.MenuItem): TapBarItemHandlerImpl {
+        this._owner = owner;
+        return this;
+    }
+
+    public tap(args) {
+        this._owner._raiseTap();
+    }
+
+    public static ObjCExposedMethods = {
+        "tap": { returns: interop.types.void, params: [interop.types.id] }
+    };
+}
\ No newline at end of file
diff --git a/ui/layouts/absolute-layout/absolute-layout.d.ts b/ui/layouts/absolute-layout/absolute-layout.d.ts
index 4580d4319..541950f18 100644
--- a/ui/layouts/absolute-layout/absolute-layout.d.ts
+++ b/ui/layouts/absolute-layout/absolute-layout.d.ts
@@ -1,12 +1,23 @@
 declare module "ui/layouts/absolute-layout" {
     import layout = require("ui/layouts/layout");
     import view = require("ui/core/view");
+    import dependencyObservable = require("ui/core/dependency-observable");    
 
     /**
      *  A layout that lets you specify exact locations (left/top coordinates) of its children.
      */
     class AbsoluteLayout extends layout.Layout {
         
+        /**
+         * Represents the observable property backing the left property.
+         */
+        public static leftProperty: dependencyObservable.Property;
+
+        /**
+         * Represents the observable property backing the top property.
+         */
+        public static topProperty: dependencyObservable.Property;
+
         /**
          * Gets the value of the Left property from a given View.
          */
diff --git a/ui/layouts/absolute-layout/absolute-layout.ts b/ui/layouts/absolute-layout/absolute-layout.ts
index f126d4b47..cd311b673 100644
--- a/ui/layouts/absolute-layout/absolute-layout.ts
+++ b/ui/layouts/absolute-layout/absolute-layout.ts
@@ -17,10 +17,10 @@ function onPropertyChanged(data: dependencyObservable.PropertyChangeData) {
 
 export class AbsoluteLayout extends layouts.Layout implements definition.AbsoluteLayout {
 
-    public static LeftProperty = new dependencyObservable.Property("Left", "AbsoluteLayout",
+    public static leftProperty = new dependencyObservable.Property("left", "AbsoluteLayout",
         new dependencyObservable.PropertyMetadata(0, undefined, onPropertyChanged, numberUtils.isFiniteNumber));
 
-    public static TopProperty = new dependencyObservable.Property("Top", "AbsoluteLayout",
+    public static topProperty = new dependencyObservable.Property("top", "AbsoluteLayout",
         new dependencyObservable.PropertyMetadata(0, undefined, onPropertyChanged, numberUtils.isFiniteNumber));
 
     public static getLeft(element: view.View): number {
@@ -28,14 +28,14 @@ export class AbsoluteLayout extends layouts.Layout implements definition.Absolut
             throw new Error("element cannot be null or undefinied.");
         }
 
-        return element._getValue(AbsoluteLayout.LeftProperty);
+        return element._getValue(AbsoluteLayout.leftProperty);
     }
 
     public static setLeft(element: view.View, value: number): void {
         if (!element) {
             throw new Error("element cannot be null or undefinied.");
         }
-        element._setValue(AbsoluteLayout.LeftProperty, value);
+        element._setValue(AbsoluteLayout.leftProperty, value);
     }
 
     public static getTop(element: view.View): number {
@@ -43,14 +43,14 @@ export class AbsoluteLayout extends layouts.Layout implements definition.Absolut
             throw new Error("element cannot be null or undefinied.");
         }
 
-        return element._getValue(AbsoluteLayout.TopProperty);
+        return element._getValue(AbsoluteLayout.topProperty);
     }
 
     public static setTop(element: view.View, value: number): void {
         if (!element) {
             throw new Error("element cannot be null or undefinied.");
         }
-        element._setValue(AbsoluteLayout.TopProperty, value);
+        element._setValue(AbsoluteLayout.topProperty, value);
     }
 
     public onMeasure(widthMeasureSpec: number, heightMeasureSpec: number): void {
diff --git a/ui/page/page-common.ts b/ui/page/page-common.ts
index 3dcf09a53..e614c8101 100644
--- a/ui/page/page-common.ts
+++ b/ui/page/page-common.ts
@@ -6,7 +6,9 @@ import styleScope = require("ui/styling/style-scope");
 import fs = require("file-system");
 import fileSystemAccess = require("file-system/file-system-access");
 import trace = require("trace");
-import observable = require("data/observable");
+import bindable = require("ui/core/bindable");
+import dependencyObservable = require("ui/core/dependency-observable");
+import enums = require("ui/enums");
 
 var OPTIONS_MENU = "optionsMenu";
 
@@ -171,6 +173,12 @@ export class OptionsMenu implements dts.OptionsMenu {
         }
 
         this._items.push(item);
+        item.menu = this;
+        item.bind({
+            sourceProperty: "bindingContext",
+            targetProperty: "bindingContext"
+        }, this._page);
+
         this.invalidate();
     }
 
@@ -184,6 +192,8 @@ export class OptionsMenu implements dts.OptionsMenu {
             throw new Error("Cannot find item to remove");
         }
 
+        item.menu = undefined;
+        item.unbind("bindingContext");
         this._items.splice(itemIndex, 1);
         this.invalidate();
     }
@@ -201,19 +211,60 @@ export class OptionsMenu implements dts.OptionsMenu {
         this.invalidate();
     }
 
-    private invalidate() {
+    invalidate() {
         if (this._page.frame) {
             this._page.frame._invalidateOptionsMenu();
         }
     }
 }
 
-export class MenuItem extends observable.Observable implements dts.MenuItem {
-    public text: string = "";
-    public icon: string;
-    public priority: number = 0;
+export class MenuItem extends bindable.Bindable implements dts.MenuItem {
+
+    public static textProperty = new dependencyObservable.Property(
+        "text", "MenuItem", new dependencyObservable.PropertyMetadata("", null, MenuItem.onItemChanged));
+
+    public static iconProperty = new dependencyObservable.Property(
+        "icon", "MenuItem", new dependencyObservable.PropertyMetadata(null, null, MenuItem.onItemChanged));
+
+    private static onItemChanged(data: dependencyObservable.PropertyChangeData) {
+        var menuItem = <MenuItem>data.object;
+        if (menuItem.menu) {
+            menuItem.menu.invalidate();
+        }
+    }
+
+    private _android: dts.AndroidMenuItemOptions;
+
+    constructor() {
+        super();
+        if (global.android) {
+            this._android = {
+                position: enums.MenuItemPosition.actionBar
+            };
+        }
+    }
+    
+    get android(): dts.AndroidMenuItemOptions {
+        return this._android;
+    }
+
+    get text(): string {
+        return this._getValue(MenuItem.textProperty);
+    }
+    set text(value: string) {
+        this._setValue(MenuItem.textProperty, value);
+    }
+
+    get icon(): string {
+        return this._getValue(MenuItem.iconProperty);
+    }
+    set icon(value: string) {
+        this._setValue(MenuItem.iconProperty, value);
+    }
 
     public _raiseTap() {
         this._emit(knownEvents.tap);
     }
+
+    menu: OptionsMenu;
 }
\ No newline at end of file
diff --git a/ui/page/page.d.ts b/ui/page/page.d.ts
index ede0ea2bd..5a30f891f 100644
--- a/ui/page/page.d.ts
+++ b/ui/page/page.d.ts
@@ -6,6 +6,9 @@ declare module "ui/page" {
     import view = require("ui/core/view");
     import contentView = require("ui/content-view");
     import frame = require("ui/frame");
+    import dependencyObservable = require("ui/core/dependency-observable");
+    import bindable = require("ui/core/bindable");
+
     //@private
     import styleScope = require("ui/styling/style-scope");
     //@endprivate
@@ -96,17 +99,20 @@ declare module "ui/page" {
          */
         onNavigatedFrom(isBackNavigation: boolean): void;
 
-        //@private
-        _getStyleScope(): styleScope.StyleScope;
-        _addArrayFromBuilder(name: string, value: Array<any>): void;
-        //@endprivate
-
+        /**
+         * Raised when navigation to the page is finished.
+         */
         on(event: string, callback: (data: observable.EventData) => void);
 
         /**
          * Raised when navigation to the page is finished.
          */
         on(event: "navigatedTo", callback: (args: NavigatedData) => void);
+
+        //@private
+        _getStyleScope(): styleScope.StyleScope;
+        _addArrayFromBuilder(name: string, value: Array<any>): void;
+        //@endprivate
     }
 
     /**
@@ -136,17 +142,36 @@ declare module "ui/page" {
         getItemAt(index: number): MenuItem;
     }
 
-    export class MenuItem extends observable.Observable {
+    export class MenuItem extends bindable.Bindable {
+
+        /**
+         * Represents the observable property backing the text property.
+         */
+        public static textProperty: dependencyObservable.Property;
+
+        /**
+         * Represents the observable property backing the icon property.
+         */
+        public static iconProperty: dependencyObservable.Property;
+
         text: string;
         icon: string;
-        priority: number;
-
+        android: AndroidMenuItemOptions;
         on(event: string, callback: (data: observable.EventData) => void);
         on(event: "tap", callback: (args: observable.EventData) => void);
 
         //@private
-        _raiseTap();
+        _raiseTap(): void;
         //@endprivate
     }
-} 
 
+    interface AndroidMenuItemOptions {
+
+        /**
+         * Specify if android menuItem should appear in the actionBar or in the popup.
+         * Use values from enums MenuItemPosition.
+         * Changes after menuItem is created are not supported.
+         */
+        position: string;
+    }
+}
\ No newline at end of file
diff --git a/ui/page/page.ios.ts b/ui/page/page.ios.ts
index 2b3fa50a9..a6a48304a 100644
--- a/ui/page/page.ios.ts
+++ b/ui/page/page.ios.ts
@@ -3,7 +3,8 @@ import definition = require("ui/page");
 import viewModule = require("ui/core/view");
 import trace = require("trace");
 
-module.exports.knownEvents = pageCommon.knownEvents;
+declare var exports;
+require("utils/module-merge").merge(pageCommon, exports);
 
 class UIViewControllerImpl extends UIViewController {
     static new(): UIViewControllerImpl {
@@ -29,7 +30,6 @@ class UIViewControllerImpl extends UIViewController {
     }
 }
 
-/* tslint:enable */
 export class Page extends pageCommon.Page {
     private _ios: UIViewController;
 
@@ -65,7 +65,7 @@ export class Page extends pageCommon.Page {
                 (<UIViewController>view.ios).removeFromParentViewController();
                 (<UIViewController>view.ios).view.removeFromSuperview();
             }
-    }
+        }
     }
 
     get ios(): UIViewController {
diff --git a/ui/tool-bar/tool-bar.android.ts b/ui/tool-bar/tool-bar.android.ts
index 492721afa..dbfd4f9ee 100644
--- a/ui/tool-bar/tool-bar.android.ts
+++ b/ui/tool-bar/tool-bar.android.ts
@@ -1,7 +1,6 @@
 import common = require("ui/tool-bar/tool-bar-common");
 import dependencyObservable = require("ui/core/dependency-observable");
 import proxy = require("ui/core/proxy");
-import types = require("utils/types");
 
 // merge the exports of the common file with the exports of this file
 declare var exports;
diff --git a/utils/containers.d.ts b/utils/containers.d.ts
deleted file mode 100644
index 93c77a207..000000000
--- a/utils/containers.d.ts
+++ /dev/null
@@ -1,101 +0,0 @@
-declare module "utils/containers" {
-    /**
-     * An interface used to compare two instances of a same class.
-     */
-    interface IEqualityComparer<T> {
-        /**
-         * Compares two instances of a same class.
-         * @param x - First object to compare.
-         * @param y - Second object to compare.
-         * Returns true if objects are equal, otherwise false.
-         */
-        equals(x: T, y: T): boolean;
-
-        /**
-         * Generates an unique hash code for an object instance.
-         */
-        getHashCode(obj: T): number;
-    }
-
-    /**
-     * Helper class used to sort arrays.
-     */
-    class ArraySortHelper {
-        /**
-         * Sorts an array using a comparer function to order elements.
-         * @param keys - The array which will be sorted.
-         * @param index - Starting index for sorting
-         * @param length - How many items to sort.
-         * @param compareFn - A function that compares two array members.
-         */
-        public static sort<T>(keys: Array<T>, index: number, length: number, compareFn: (a: T, b: T) => number);
-    }
-
-    /**
-     * Represents a collection of keys and values.
-     */
-    class Dictionary<TKey, TValue> {
-        /**
-         * The size of the dictionary.
-         */
-        count: number;
-        /**
-         * Creates an instance of a Dictionary.
-         */
-        constructor(comparer: IEqualityComparer<TKey>);
-
-        /**
-         * Iterates through all items and executes a callback function.
-         * @param callbackfn - A function that will be executed for each item.
-         */
-        public forEach(callbackfn: (key: TKey, value: TValue) => void);
-
-        /**
-         * Clears the entire Dictionary.
-         */
-        public clear(): void;
-
-        /**
-         * Removes the item associated with a given key.
-         * @param key - A key to remove.
-         */
-        public remove(key: TKey): boolean;
-
-        /**
-         * Returns the item associated with a given key.
-         * @param key - A lookup key.
-         */
-        public get(key: TKey): TValue;
-
-        /**
-         * Returns if an item associated with a given key exist in the Dictionary.
-         * @param key - A lookup key.
-         */
-        public has(key: TKey): boolean;
-
-        /**
-         * Associates a value with a key.
-         * @param key - A key for the value.
-         * @param value - The real value.
-         */
-        public set(key: TKey, value: TValue): void;
-    }
-
-    /**
-     * An implementation of IEqualityComparer that works with strings.
-     */
-    class StringComparer implements IEqualityComparer<string> {
-        /**
-         * Compares two strings.
-         * @param x - First string to compare.
-         * @param y - Second string to compare.
-         * Returns true if strings are equal, otherwise false.
-         */
-        equals(x: string, y: string): boolean;
-
-        /**
-         * Generates an unique hash code for a string.
-         */
-        getHashCode(str: string): number;
-    }
-}
\ No newline at end of file
diff --git a/utils/containers.ts b/utils/containers.ts
deleted file mode 100644
index 1617fec57..000000000
--- a/utils/containers.ts
+++ /dev/null
@@ -1,166 +0,0 @@
-import definition = require("utils/containers");
-
-export class ArraySortHelper implements definition.ArraySortHelper {
-
-    public static sort<T>(keys: Array<T>, index: number, length: number, compareFn: (a: T, b: T) => number) {
-
-        if (length < 2) {
-            return;
-        }
-
-        if (keys.length === length) {
-            keys.sort(compareFn);
-            return;
-        }
-
-        var sorted = keys.splice(index, length);
-        sorted.sort(compareFn);
-
-        var args: Array<Object> = [0, index];
-        keys.splice.apply(keys, args.concat(sorted));
-    }
-}
-
-export class StringComparer implements definition.IEqualityComparer<string> {
-    public equals(x: string, y: string): boolean {
-        return x === y;
-    }
-
-    public getHashCode(str: string): number {
-        var res = 0, len = str.length;
-        for (var i = 0; i < len; i++) {
-            res = res * 31 + str.charCodeAt(i);
-        }
-        return res;
-    }
-}
-
-interface Entry<TKey, TValue> {
-    hashCode: number;
-    next: Entry<TKey, TValue>;
-    key: TKey;
-    value: TValue;
-}
-
-export class Dictionary<TKey, TValue> implements definition.Dictionary<TKey, TValue> {
-
-    private _comparer: definition.IEqualityComparer<TKey>;
-    private _count: number = 0;
-    private _entries: Array<Entry<TKey, TValue>>;
-    private _version: number = 0;
-
-    constructor(comparer: definition.IEqualityComparer<TKey>) {
-        this._comparer = comparer;
-        this._entries = new Array<Entry<TKey, TValue>>();
-    }
-
-    get count(): number {
-        return this._count;
-    }
-
-    public forEach(callbackfn: (key: TKey, value: TValue) => void) {
-        var currentVersion = this._version;
-        for (var index in this._entries) {
-            var entry = this._entries[index];
-            callbackfn(entry.key, entry.value);
-            if (currentVersion !== this._version) {
-                throw new Error("Cannot modify Dictionary while enumerating.");
-            }
-        }
-    }
-
-    public clear(): void {
-        if (this.count > 0) {
-            this._entries = new Array<Entry<TKey, TValue>>();
-            this._count = 0;
-            this._version++;
-        }
-    }
-
-    public remove(key: TKey): boolean {
-        if (!key) {
-            throw new Error("key cannot be null/undefined.");
-        }
-
-        var hash = this._comparer.getHashCode(key);
-        var previousEntry: Entry<TKey, TValue> = null;
-        for (var entry = this._entries[hash]; entry; entry = entry.next) {
-            if (entry.hashCode === hash && this._comparer.equals(entry.key, key)) {
-                if (previousEntry) {
-                    previousEntry.next = entry.next;
-                }
-                else {
-                    this._entries[hash] = entry.next;
-                }
-                return true;
-            }
-
-            this._count--;
-            this._version++;
-
-            previousEntry = entry;
-        }
-
-        return false;
-    }
-
-    public get(key: TKey): TValue {
-        var entry = this.findEntry(key);
-        if (entry) {
-            return entry.value;
-        }
-
-        return undefined;
-    }
-
-    public has(key: TKey): boolean {
-        return (this.findEntry(key) ? true : false);
-    }
-
-    public set(key: TKey, value: TValue): void {
-        if (!key) {
-            throw new Error("key cannot be null or undefined.");
-        }
-
-        var hash = this._comparer.getHashCode(key);
-        var lastEntryForHash: Entry<TKey, TValue> = null;
-        for (var entry = this._entries[hash]; entry; entry = entry.next) {
-            lastEntryForHash = entry;
-            if (entry.hashCode === hash && this._comparer.equals(entry.key, key)) {
-                entry.value = value;
-                this._version++;
-                return;
-            }
-        }
-
-        this._count++;
-
-        var newEntry = <Entry<TKey, TValue>>{};
-        newEntry.hashCode = hash;
-        newEntry.key = key;
-        newEntry.value = value;
-        if (lastEntryForHash) {
-            lastEntryForHash.next = newEntry;
-        }
-        else {
-            this._entries[hash] = newEntry;
-        }
-
-        this._version++;
-    }
-
-    private findEntry(key: TKey): Entry<TKey, TValue> {
-        if (!key) {
-            throw new Error("key cannot be null or undefined.");
-        }
-
-        var hash = this._comparer.getHashCode(key);
-        for (var entry = this._entries[hash]; entry; entry = entry.next) {
-            if (entry.hashCode === hash && this._comparer.equals(entry.key, key)) {
-                return entry;
-            }
-        }
-
-        return null;
-    }
-}
\ No newline at end of file