Dedicated Hardware Controller
A lot of keyboards and controllers exists already, but imagine having a Propellerhead hardware controller ex. for the Combinator with displays showing excactly where and what you are controlling.
A simple but powerfull midi device containing 4 knops, 4 push buttons, a wheel and/or x-pad, multi display and some direct device selection functions.
The Device could secondary perhaps also help Sync funchtions between live multi session where 2 or more PC/Mac