A bunch of Electronic Arts games are on sale for .99 I picked up a few of them for the other day. Hurry up if you want them because I think they are only on sale for a limited time
I have a ton of games on my iPhone and iPad that I love so if you could narrow down the genre of games that you like and it will be easier to recommend some.
I'm playing Street Fighter IV, the entire EA sports line that went on sale, Geometry Wars: Touch (wow!), Real Racing (uses Gyro and Retina), and Plants vs. Zombies.