The control scheme, processing power and a few other things hinder games from being re-developed for the iPhone. Flash might not be able to be implemented on it (at least now) because of the specifications.
Anyway, I'd probably want to see some of John's games. Achievement Unlocked, This Is The Only Level etc.
The control schemes of many flash games will surely complicate things even further.
Hmmm.... I'd like to see stuff like Scribble 2, Age of War, Warfare 1944/1917 and Storm the House 3. They seem fairly easy to use on an iPod Touch/iPhone since it's just point and click.