title: Which Android platform and API to target?
body: <p>I'm just about to launch my first Android app, and it runs on the Android 1.1 platform, API Level 2, but is this what I should officially sign and launch the app as?  Does it affect performance at all or is it simply for Android to know which devices it works on?</p>
  
  <p>The only problem I see is that I can't specify &lt;supports-screens&gt; in the Manifest, which I would like to do, but it appears I'd have to launch at 1.6 at least for this to work.</p>
  
  <p>Would I be missing a huge number of phones by launching at 1.6 instead of 1.1?</p>
  
  <p>Thank you!</p>