Illusia and solomons keep, and both quite good games! I would recommend them, as they are a bit more challenging!
Solmon's Keep was fun, I played the demo on my iPad, but I am disappointed there is no native iPad version. It's only made for iPhone so it's up-scaled with a black border on iPad.
I just finished Reckless Getaway with all stars. They did a good job with game play and controls.
Now I'm working on Dungeon Hunter 2 and Super Brothers: Sword & Sworcery EP. I also play a lot of minesweeper.