I just came across this. It’s an app that enables you to make music by the selection of animated characters, and upload it to youtube. There are several levels with different beats and characters. I’ve tried it and it works pretty sweet, except for the uploading to youtube. The sound isn’t like it is on your iPhone which is a pity. But i can imagine it would be pretty cool for kids. It’s a free iPhone app so i’d say try it out. More here. Via.