I believe the iPad version supports virtual MIDI out?..this feature is needed in the iPhone version as well! The sequencer is great and very easy to input notes as opposed to many others. Inter-app audio/audiobus is a huge necessity for this app, especially with ableton Link. Not even background audio is supported yet, making it impossible to jam with this app in the background. Also, the option for 8, 16 and maybe even 32 bar sequences would be very nice. The app-repertoire for the iPhone in regards to midi sequencers with virtual MIDI out is very thin. I needs it.. :) Thank you!