Sonar gets a little too complex for that methinks and as much as I too would like full control via keyboard coding it in such a way would be detrimental to the workflow of the Skylight paradigm.
That's why hardware/HID solutions would be more appealing to me. Between my trackball and the keyboard I fly around quite well (and I think the TB is why I maybe have a better experience than some... mice suck for this type of work). Thing is I do insane amounts of tracking and when I do I rely heavily on keyboard commands to start/stop things. As soon as I have to reach out and grab the trackball to do whatever it breaks the creative flow. That's why if I had a little joystick on the right side for nav and some keys on the left side for left/right "clicking" I would be in heaven.
Maybe I should contact Gibson/Craig and develop the ultimate DAW/tracking/editing keyboard.
F*ck control surfaces. I want a fancy WIRED keyboard (that maybe has the option of being wireless for remote control but I hate recharging crap/sending unnecessary signals throught the air or installing stupid drivers).