that's a cool interface - "impossible to play a wrong note" kinda leaves out the ability for intentional accidentals, but... not bad for a lot of things. Bonus points if they get the glowing holograms floating in the air working :)
They actually have some cool features to allow multiple scales and scale changes, so intentional accidentals are promoted. This looks a lot like the Ableton Push controllers besides the direct Ableton integrations. I think the unintentional accidents are what would be missed, and those can be just as good.