anyone with an iphone 4 or 3gs needs to go look at nanostudio in the app store. it is by far the deepest DAW for the iphone i have ever seen. i used to use beatmaker, which was cool, but always felt like a toy. nanostudio is like a mini logic in your pocket. i don't have anything to post yet (just got it yesterday, still poking around it), but i hope to soon. seriously, i have never seen so many 5 star reviews for an app, every one of them well deserved.