Angry Birds Rio HD
OK, to be honest with you, we don't think there's going to be all that much different between the iPad 1 and iPad 2 when you're playing Angry Birds. But if you've got the newest iPad, you need the newest games - and Angry Birds Rio HD only came out a few days ago. It's also a whole bunch of fun new levels to play if you've clocked the original.
Find Angry Birds Rio HD here on the iTunes App Store.