Update on the iPad + MIDI front:
Last weekend I tested the iPad with iOS 4.2 + iPad Camera Connection Kit+ midi monitor app + gm5x5x5, and...
IT WORKED!!! , ok... just tested moving things on the app, the gm5x5x5 leds shine away like a christmas tree, I'll have to test midi input too later.
(tried also with a m-audio midisport 4x4, no go)
But somehow the last time I tried to compile mbSEQ I couldn't (like a month ago) so I don't know if it will work without any further modifications, have you tested this TK?