Add a "MIDI" modifier key on the bottom right where apple has the FN key and stick a single super slick rotary encoder on the top right of the unit. Hold MIDI-(0-9) and you get ten midi CCs from the knob. Note on offs from the Q and A rows. Pressing MIDI-Arrow moves the keyboard by octave. Same thing could go for an integrated XYZ Pad. Hit MIDI and it's an XY pad, without it's just a mouse.
Just a wacky idea.