What I'm having trouble with is figuring the dimensions of the playable area based on how big the screen is. With this information in hand I would then be able to restrict enemy and player movement, as well as alter other game logic.
I'm currently developing with my Samsung Galaxy Nexus (ICS, Android 4.0.2), but would of course like the game to function both on my wife's Droid 2 and my spare HTC Incredible. How can I do this? D: