There are a fair few music creation apps out there for the iPad now and some of them are even emulating full-on desktop DAWs. Making iPad apps look like Logic, Cubase or Pro Tools seems to be the most popular approach but maybe there is another route? Futucraft seem to think so.
Cotracks not only looks different to your average iPad music app but it also has a really interesting concept. This app is actually designed to allow you to collaborate with other users. Up to four people can play at once'