 <p>You should probably write your application as a Home application. There is an example in the developer docs here:</p> <p><a href="http://developer.android.com/resources/samples/Home/index.html" rel="nofollow">http://developer.android.com/resources/samples/Home/index.html</a></p> <p>Then you'd be able to switch the default Home application for your one.</p>