diff --git a/BluetoothLEExplorer/BluetoothLEExplorer.Droid/BluetoothLEExplorer.Droid.csproj b/BluetoothLEExplorer/BluetoothLEExplorer.Droid/BluetoothLEExplorer.Droid.csproj
index d3d458da3..9778c1a89 100644
--- a/BluetoothLEExplorer/BluetoothLEExplorer.Droid/BluetoothLEExplorer.Droid.csproj
+++ b/BluetoothLEExplorer/BluetoothLEExplorer.Droid/BluetoothLEExplorer.Droid.csproj
@@ -17,7 +17,7 @@
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
     <AssemblyName>Xamarin.Robotics.BluetoothLEExplorer.Droid</AssemblyName>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
-    <TargetFrameworkVersion>v4.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/BluetoothLEExplorer/BluetoothLEExplorer.Droid/Properties/AndroidManifest.xml b/BluetoothLEExplorer/BluetoothLEExplorer.Droid/Properties/AndroidManifest.xml
index 670b29094..785e3d63b 100644
--- a/BluetoothLEExplorer/BluetoothLEExplorer.Droid/Properties/AndroidManifest.xml
+++ b/BluetoothLEExplorer/BluetoothLEExplorer.Droid/Properties/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="BluetoothLEExplorer.Droid">
-	<uses-sdk android:minSdkVersion="18" android:targetSdkVersion="18" />
+	<uses-sdk android:minSdkVersion="18" android:targetSdkVersion="19" />
 	<application android:label="BLE Explr.">
 	</application>
 	<uses-permission android:name="android.permission.BLUETOOTH" />
diff --git a/ContentControls/AndroidContentControls/AndroidContentControls.csproj b/ContentControls/AndroidContentControls/AndroidContentControls.csproj
index 47a0c852a..451d5cb2b 100644
--- a/ContentControls/AndroidContentControls/AndroidContentControls.csproj
+++ b/ContentControls/AndroidContentControls/AndroidContentControls.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -19,7 +19,7 @@
     <DeployExternal>False</DeployExternal>
     <AndroidStoreUncompressedFileExtensions />
     <MandroidI18n />
-    <TargetFrameworkVersion>v2.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>True</DebugSymbols>
diff --git a/EmbeddedResources/EmbeddedResources.Droid/EmbeddedResources.Droid.csproj b/EmbeddedResources/EmbeddedResources.Droid/EmbeddedResources.Droid.csproj
index debc5c77c..62c8e9f37 100644
--- a/EmbeddedResources/EmbeddedResources.Droid/EmbeddedResources.Droid.csproj
+++ b/EmbeddedResources/EmbeddedResources.Droid/EmbeddedResources.Droid.csproj
@@ -16,7 +16,7 @@
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
     <AndroidUseLatestPlatformSdk>True</AndroidUseLatestPlatformSdk>
     <AssemblyName>EmbeddedResources.Droid</AssemblyName>
-    <TargetFrameworkVersion>v4.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/GLKeysES30/Android/Android.csproj b/GLKeysES30/Android/Android.csproj
index 987a6c62b..e5627bee5 100644
--- a/GLKeysES30/Android/Android.csproj
+++ b/GLKeysES30/Android/Android.csproj
@@ -16,7 +16,7 @@
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
     <AssemblyName>GLKeysES30</AssemblyName>
-    <TargetFrameworkVersion>v4.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/Notifications/Notifications.Android/Notifications.Android.csproj b/Notifications/Notifications.Android/Notifications.Android.csproj
index 74df46560..a04d1b521 100644
--- a/Notifications/Notifications.Android/Notifications.Android.csproj
+++ b/Notifications/Notifications.Android/Notifications.Android.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -13,7 +13,7 @@
     <AndroidApplication>true</AndroidApplication>
     <AndroidResgenFile>Resources\Resource.Designer.cs</AndroidResgenFile>
     <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
-    <TargetFrameworkVersion>v2.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/Properties/AndroidManifest.xml b/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/Properties/AndroidManifest.xml
index 91b3f0e5f..cb9a0319e 100644
--- a/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/Properties/AndroidManifest.xml
+++ b/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/Properties/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="HybridRazorNativeTodo">
-	<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="15" />
+	<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="19" />
 	<application android:label="HybridRazorNativeTodo" android:icon="@drawable/check2x">
 	</application>
 </manifest>
\ No newline at end of file
diff --git a/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/RazorNativeTodo.Android.csproj b/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/RazorNativeTodo.Android.csproj
index 701f89ad3..e102ee8bd 100644
--- a/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/RazorNativeTodo.Android.csproj
+++ b/RazorTodo/RazorNativeTodo/RazorNativeTodo.Android/RazorNativeTodo.Android.csproj
@@ -15,7 +15,7 @@
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
     <AssemblyName>QuickTodo.Android</AssemblyName>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
-    <TargetFrameworkVersion>v4.0.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/RazorTodo/RazorTodo/RazorTodo.Android/Properties/AndroidManifest.xml b/RazorTodo/RazorTodo/RazorTodo.Android/Properties/AndroidManifest.xml
index b14b848c0..972874a08 100644
--- a/RazorTodo/RazorTodo/RazorTodo.Android/Properties/AndroidManifest.xml
+++ b/RazorTodo/RazorTodo/RazorTodo.Android/Properties/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="RazorTodo.Android">
-	<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="15" />
+	<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="19" />
 	<application android:label="RazorTodo.Android" android:icon="@drawable/check2x">
 	</application>
 </manifest>
\ No newline at end of file
diff --git a/RazorTodo/RazorTodo/RazorTodo.Android/RazorTodo.Android.csproj b/RazorTodo/RazorTodo/RazorTodo.Android/RazorTodo.Android.csproj
index f060c52cf..d102bccd3 100644
--- a/RazorTodo/RazorTodo/RazorTodo.Android/RazorTodo.Android.csproj
+++ b/RazorTodo/RazorTodo/RazorTodo.Android/RazorTodo.Android.csproj
@@ -15,7 +15,7 @@
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
     <AssemblyName>RazorTodo.Android</AssemblyName>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
-    <TargetFrameworkVersion>v4.0.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/TexturedCubeES30/TexturedCube.csproj b/TexturedCubeES30/TexturedCube.csproj
index c087ecb9b..1d60fa462 100644
--- a/TexturedCubeES30/TexturedCube.csproj
+++ b/TexturedCubeES30/TexturedCube.csproj
@@ -15,7 +15,7 @@
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
     <AndroidResgenFile>Resources\Resource.Designer.cs</AndroidResgenFile>
     <AndroidApplication>true</AndroidApplication>
-    <TargetFrameworkVersion>v4.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>True</DebugSymbols>
diff --git a/TipCalc/TipCalc.UI.Android/TipCalc.UI.Android.csproj b/TipCalc/TipCalc.UI.Android/TipCalc.UI.Android.csproj
index a93c96511..fa2567da8 100644
--- a/TipCalc/TipCalc.UI.Android/TipCalc.UI.Android.csproj
+++ b/TipCalc/TipCalc.UI.Android/TipCalc.UI.Android.csproj
@@ -14,7 +14,7 @@
     <AndroidResgenFile>Resources\Resource.designer.cs</AndroidResgenFile>
     <AssemblyName>TipCalc.UI.Android</AssemblyName>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
-    <TargetFrameworkVersion>v2.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/TipCalc/TipCalc.Util.Android/TipCalc.Util.Android.csproj b/TipCalc/TipCalc.Util.Android/TipCalc.Util.Android.csproj
index aeeb3fe78..ca7ceed26 100644
--- a/TipCalc/TipCalc.Util.Android/TipCalc.Util.Android.csproj
+++ b/TipCalc/TipCalc.Util.Android/TipCalc.Util.Android.csproj
@@ -10,7 +10,7 @@
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
     <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>
     <AssemblyName>TipCalc.Util.Android</AssemblyName>
-    <TargetFrameworkVersion>v2.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/VisualBasic/TaskyPortableVB/TaskyAndroid/Properties/AndroidManifest.xml b/VisualBasic/TaskyPortableVB/TaskyAndroid/Properties/AndroidManifest.xml
index 513b73eaa..ac22441ad 100644
--- a/VisualBasic/TaskyPortableVB/TaskyAndroid/Properties/AndroidManifest.xml
+++ b/VisualBasic/TaskyPortableVB/TaskyAndroid/Properties/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.xamarin.samples.taskydroid">
 	<application android:label="TaskyPcl" android:debuggable="true"></application>
-	<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="15" />
+	<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="19" />
 </manifest>
\ No newline at end of file
diff --git a/VisualBasic/TaskyPortableVB/TaskyAndroid/TaskyAndroid.csproj b/VisualBasic/TaskyPortableVB/TaskyAndroid/TaskyAndroid.csproj
index 0e41010aa..fe8c5b346 100644
--- a/VisualBasic/TaskyPortableVB/TaskyAndroid/TaskyAndroid.csproj
+++ b/VisualBasic/TaskyPortableVB/TaskyAndroid/TaskyAndroid.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -18,7 +18,7 @@
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
     <AndroidSupportedAbis>armeabi-v7a%3bx86</AndroidSupportedAbis>
     <MandroidI18n />
-    <TargetFrameworkVersion>v4.0.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/WebServices/HelloWorld/HelloWorld.Android/HelloWorld.Android.csproj b/WebServices/HelloWorld/HelloWorld.Android/HelloWorld.Android.csproj
index e52ba607a..d683afde9 100644
--- a/WebServices/HelloWorld/HelloWorld.Android/HelloWorld.Android.csproj
+++ b/WebServices/HelloWorld/HelloWorld.Android/HelloWorld.Android.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -21,7 +21,7 @@
     <MandroidI18n />
     <JavaMaximumHeapSize />
     <JavaOptions />
-    <TargetFrameworkVersion>v2.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.4</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/WebServices/HelloWorld/HelloWorld.Android/Properties/AndroidManifest.xml b/WebServices/HelloWorld/HelloWorld.Android/Properties/AndroidManifest.xml
index 3140a0d50..6d3d141b4 100755
--- a/WebServices/HelloWorld/HelloWorld.Android/Properties/AndroidManifest.xml
+++ b/WebServices/HelloWorld/HelloWorld.Android/Properties/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
-	<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="10" />
+	<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="19" />
 	<application></application>
 </manifest>
\ No newline at end of file