The Tenori-On is now available to Buy for $999.00!
Check out: http://www.tenori-onusa.com/
I was able to play a Tenori-on here in DC one evening when I attended an experimental music performance event founded and hosted by aerospace engineer and musician Kelly Snook. Kelly is presently working at NASA, and is on sabbatical for a year at the MIT Media Lab. She showed me how the Tenori-on works and let me play with it for a bit. Beyond Wonderful!