Onoko has released Pad MIDI (App Store link), a free Wireless MIDI control app for iPhone/iPad. Features: Supports native Mac OS Network MIDI (Core MIDI) 16 assignable / renameable MIDI pads Full 88 key piano Selectable MIDI channel and velocity There’s a tutorial on setting up MIDI on an OS X network at Nix Fox-Gieg’s… Read More Free Wireless MIDI Controller For iPad, iPhone