Catapult King lacks innovation on the surface, unfortunately. It looks like an Angry Birds clone in 3D, and that's basically what it is. I say "unfortunately" because I hope that won't keep you from giving it a look anyway. I saw this title for the first time at E3 last week, and while I am not a big fan of Angry Birds, I've really enjoyed Catapult King.
It's a Chillingo-published title (as Angry Birds was originally, you'll recall), so it's got all of the polish that Chillingo os known for. The game just looks amazing. The graphics are clear and colorful, and there are a lot of nice touches, like art in the background of each stage that really adds a lot of depth and vision to the proceedings. You obviously control a catapu