You could make at autonomous app for the iPhone and iPad 2. You would need compressed, smaller versions of the real tracks I would think. I would imagine It would work. There's another app called "iReal book" that is almost exactly like BIAB but has/had all the usual Realbook jazz tunes. ( I used 'has/had', as they pulled the original tunes due to inevitable copyright issues, but you can get them, and if you are an original owner of the app, you still have them)

the point is; this proves it's doable. Of course iRealbook is limited, and that's what a realtime version of BIAB on this platform would most likely need to be.

Frankly this whole server thing is too much of a hassle for me. You mentioned being lazy. You haven't seen nothin