What I'd like to see and I hope someone will manufacture some day, is a device for enhancing the bass played by left hand keyboard players on arranger keyboards. Something that double picks,modulates or generally makes a keyboard bass sound more like a real bass guitar.
I feel that a lot a work could be done in that direction. There is nothing I've seen that addresses that. I still prefer the manual keyboard keybass play to the awful automatic accompaniment that arranger keyboards produce.
This device in the video, however, is cool for bass players who play stringed bass.