"early 2000 there was this 3d drawing software called Rhonda, very cool to draw in 3D but it was quite hard to master (I never did): http://rhondaforever.com/ this mental canvas look much more practical and easy to use. "

"yeap, it's only for the style.I like this idea of multiple users doing something together. that could be a fun thing to do."

"Yeah on it (except for the insane price they asking for)I used to VJ and USB controller are much more accurate than typing on a keyboard, as a designer I use a wacom and there are short cuts and buttons to assign to your software, but it's far away in from pushing a slider or turning a knob.there are few options to do DIY buttons, but you have to use processing + arduino + apple script, which is a bit... messy in comparison of what those guys offer."