Honestly, I'd like to setup one this Friday, but I wouldn't mind trying building it myself...it's just I don't know where to start...I've done some things on Windows using C# Kinect SDK (but I'll switch to C++ OpenNI if needed) and I've used the WiimoteLib for reading Wiimote motion, it's just that I've never used any of those with any kind of MIDI/OSC music generation software/libraries with it.
To tell you the truth, I'd prefer to keep it as simple as possible, thus WiiMote->OSC and Kinect->OSC and then to OSC->MIDI could be simplified directly to Wiimote/Kinect->MIDI if I could get the same effect as in your youtube video (maybe I should just install some hackintosh for the first time onto my laptop and try to build the same setup as yourself in the video, maybe that would be much easier, given my timeframe?).
And to answer your post, yep, it's me that posted in the comments bellow too (sry for the double trouble:).