As we've mentioned before we've been porting our engine to IPhone/IPad. We are around one month in development and cool stuff is starting to happen. Our game Vizati has many of it's features already working on both IPhone and IPad as you can see on these pictures.
I can say that there's absolutely no difference in code from these two builds. The engine detects the screen resolution and drawing is made considering a virtual resolution (1280x720), our original one from the PC version. That's why you see the letter-boxing around the game. Of course the game can't have this but this is just for engine tests.
Still many work to be done but we are getting closer to have a stable framework for our games.
I have to get my hands on a real iPad device to test this properly though.