diff --git a/BCL.csproj b/BCL.csproj
index 1941f0713..1161294d7 100644
--- a/BCL.csproj
+++ b/BCL.csproj
@@ -135,7 +135,7 @@
     <TypeScriptCompile Include="text\text.ios.ts">
       <DependentUpon>text.d.ts</DependentUpon>
     </TypeScriptCompile>
-    <TypeScriptCompile Include="utils\module_merge.ts" />
+    <TypeScriptCompile Include="utils\module-merge.ts" />
     <TypeScriptCompile Include="utils\utils_android.ts" />
     <TypeScriptCompile Include="utils\utils_ios.ts" />
     <TypeScriptCompile Include="http\http-request.d.ts" />
diff --git a/location/location.android.ts b/location/location.android.ts
index 24e403293..cfb9723a4 100644
--- a/location/location.android.ts
+++ b/location/location.android.ts
@@ -1,7 +1,7 @@
 import types = require("location/location-types");
 import appModule = require("application/application");
 import common = require("location/location-common");
-import merger = require("utils/module_merge");
+import merger = require("utils/module-merge");
 
 // merge the exports of the types module with the exports of this file
 declare var exports;
diff --git a/location/location.ios.ts b/location/location.ios.ts
index 9a21a0326..d292c84e4 100644
--- a/location/location.ios.ts
+++ b/location/location.ios.ts
@@ -1,6 +1,6 @@
 import types = require("location/location-types");
 import common = require("location/location-common");
-import merger = require("utils/module_merge");
+import merger = require("utils/module-merge");
 
 // merge the exports of the types module with the exports of this file
 declare var exports;
diff --git a/utils/module_merge.ts b/utils/module-merge.ts
similarity index 100%
rename from utils/module_merge.ts
rename to utils/module-merge.ts
diff --git a/utils/utils.android.ts b/utils/utils.android.ts
new file mode 100644
index 000000000..3acfe9f2f
--- /dev/null
+++ b/utils/utils.android.ts
@@ -0,0 +1,24 @@
+export class Collections {
+    public static stringArrayToStringSet(str: string[]): any {
+        var hashSet = new java.util.HashSet();
+        if ("undefined" != typeof str) {
+            for (var element in str) {
+                hashSet.add('' + str[element]);
+            }
+        }
+        return hashSet;
+    }
+
+    public static stringSetToStringArray(stringSet: any): string[] {
+        var arr = [];
+        if ("undefined" != typeof stringSet) {
+            var it = stringSet.iterator();
+            while (it.hasNext()) {
+                var element = '' + it.next();
+                arr.push(element);
+            }
+        }
+
+        return arr;
+    }
+}
\ No newline at end of file
diff --git a/utils/utils.d.ts b/utils/utils.d.ts
new file mode 100644
index 000000000..89391242a
--- /dev/null
+++ b/utils/utils.d.ts
@@ -0,0 +1,7 @@
+/**
+  * Timer functions.
+  */
+export declare function setTimeout(callback: Function, milliseconds?: number): number;
+export declare function clearTimeout(id: number): void;
+export declare function setInterval(callback: Function, milliseconds?: number): number;
+export declare function clearInterval(id: number): void;
\ No newline at end of file
diff --git a/utils/utils.ios.ts b/utils/utils.ios.ts
new file mode 100644
index 000000000..d355c3252
--- /dev/null
+++ b/utils/utils.ios.ts
@@ -0,0 +1,22 @@
+export class Collections {
+    public static jsArrayToNSArray(str: string[]): any {
+        var arr = new Foundation.NSMutableArray();
+        if ("undefined" != typeof str) {
+            for (var element in str) {
+                arr.addObject(str[element]);
+            }
+        }
+        return arr;
+    }
+
+    public static nsArrayToJSArray(a: any): string[] {
+        var arr = [];
+        if ("undefined" != typeof a) {
+            for (var i = 0; i < a.count(); i++) {
+                arr.push(a.objectAtIndex(i));
+            }
+        }
+
+        return arr;
+    }
+}
\ No newline at end of file