I had never heard of this and took a look. I expected some crazy off the wall idea, but to my surprise I found it quite fascinating, and might be the best step forward I have seen for keyboards. The idea is quite brilliant and takes aftertouch to a whole different level. And it seems more intuitive than the way aftertouch works now by adding pressure.
If it works the way shown on the video it adds a new layer of reality to instrument simulations. You can treat the key like say a guitar string and add vibrato, slide and bend just as you would on the string of a real guitar. I could imagine great things for brass and saxes, and the demo of a violin is terrific. I think you would have to be able to switch it on and off as desired, and maybe by zone, but the potential is huge.
I would love to try this, and didn't think the price too bad for what it adds, although I would never go
for the ‘take your keyboard apart, do it yourself’ approach.
But maybe this is next significant step ahead for over the counter Yamaha synths and arrangers, I could certainly see that. You have to be believe Yamaha etc are watching this closely, if not already working on it.
I see so many suggestions for features on our keyboards that little commercial value, so they never happen, and people complain about poor customer response. But in my estimation the potential value of this technology is huge and would really sell keyboards.
Mike