In my last post I mentioned the android:minSdkVersion attribute to <uses-sdk> tag.   As of SDK 1.5 the attribute values used correspond to the following API releases:
| minSdkVersion | API Version | 
|---|---|
| 1 | 1.0 | 
| 2 | 1.1 | 
| 3 | 1.5 | 
You can read more about all of this at http://developer.android.com/sdk/android-1.5.html
