Which iPhone version of Reversi is the best? I'm looking for the most visually appealing and feature-rich Reversi on the App Store, and would like your input on this. I was originally going to get Ponos Reversi, but that only works on iPhone 4 and iPad. Do you know if there are any plans to make this playable on older devices, like the 3GS, or do you have any other versions of Reversi that you could recommend?