Earlier this month we saw MIDI Test Box for iPhone, today a Universal version is available for this MIDI Debugger.
An essential app for anyone using MIDI wanting to check connectivity and find out what is and what isn't working. Designed to give feedback in real time and requiring little or no setup so that it ready to use when you need to use it.
Great for analysing MIDI and connectivity, logs all incoming messages to show what's happening in real time.
Requires little or no setup, has all the functionality of MTB when running on the iPhone.
These sorts of debuggers can be really handy, especially in a mobile version so you actually have them at hand!
Here is the promo video for the iPhone version.