Appears to be an excellent tool, and one I am saving up for. It is far more sophisiticated than the Triumph tool as it comes with software that allows you to modify many things including fuel map, ignition timing, injector pulses etc, so you can take someone elses tune, store the one off your bike for safe keeping, and try the new one.
For more info, and the main selling place try the website
TuneBoy Homepage
Rexx