Music: Supermoon Morning
Garageband on the iPad is very impressive. It seems more musical than many of the other composition apps I've tried on the iPad. After an hour of playing around with it, I'd spent the time actually noodling with musical ideas rather than figuring out how to use it. This little piece was wholy created on the iPad and then exported via email.
Lack of sharing by anything other than email is really the biggest drawback of Garageband on the iPad, I'd say. Great stuff.