title: How to improve a MapActivity/MapView
body: <p>I'm looking for some ways to improve a MapActivity with additional features.</p>
  
  <p>For instance, on several applications, I have seen animated popups when the user clicks on an item. This is the kind of things I would like to do (so that I get rid of the ugly alertDialog).</p>
  
  <p>Maybe some libraries already exists? Or could you point me out some tutorials to do that on my own?</p>