Shoot U and other games by that developer (Camel, I think they are called) are worth checking out. Blow Up, by them, is one of my favourite games, it's like iDemolish (which is also available) but IMHO better. If you like Angry Birds, try Steel Shot (low budget knock-off, still quite good) or a little game called Angry Birds - once it's released, no one knows when that will be but there is a demonstration video that suggests it's not far off.