In celebration of this release, they have put the iPhone version of MIDI Test Box on sale, for free! This is a handy MIDI debugger.
MIDI INTERACTIVE NOTE DEVICE
Allows a MIDI input to produce a multiple output of Harmonies and rhythm, based on the users defined parameters.
A real-time performance and compositional tool
Highly human in response, function and intention
Core MIDI compliant
Buy MIDI TEST BOX on iTunes: Free (On Sale)
Confused? Apparently Apple's app review team was too, so Dyslexia put out a demo video specifically for them.