I'm writing an application for android and would like to have an itunes like coverflow preview.
Is there anything in the api that I can use or do I have to build it from scratch?
There is no built-in coverflow widget, the closest thing is probably the Gallery widget. Still I'd be surprised if someone hadn't tried something of the sort yet, and you might find some code floating around the internet. Google has some mentions of coverflow on Android, though I haven't checked it out in any detail.