Last MusicRadar heard, there were only two of these in the world - but now newly-formed company Reactable Systems is going to put the Reactivision-based Reactable into production.
Two of Roland's strangests instruments, the V-Accordion and the HandSonic Hand Percussion Pad, are featured in this live performance video from Frankfurt Musikmesse 2009. Ludovic Beier plays the "jazz organ" riffs on Roland FR-1b and FR-7b, with Tommy Snyder on HandSonic 10 Hand Percussion Pad.