Yeah, actually that guy is awesome, and he really get’s jamming. Put’s a smile on my face every time 
I did see some for sale in the ‘used’ markets. I didn’t know that they actually made 3 different versions of this thing.
Has anyone here ever used one? Do they work well? How is the latency? Does the integrated computer keyboard somehow hamper the music keyboard?
But just for curiosity, since Prodikeys seems to have been discontinued (their site say’s “end of life”), does anyone know if another company is making something like this?