Adapting to newer devices

After PRE, the next device introduced by PALM was called PIXI. It's one big mystery why newer, more complex and forward-looking device has smaller screen size than its predecessor. Nowadays, when mobiles has all the time more and more additional goodies, it's at least not really clever. But if we want to get to the widest audience our apps need to be flexible. Because I was anxious at the time, I chose the simplest way to run my Zombie Eliminator also on Pixi - I just make 80px height 'dead zone' on the bottom. It is visible on PRE and hidden on PIXI. Simple & working.
I recommend also nice art about Effective Design for Multiple Screen Sizes by Bryan Rieger at Mobi forge.