Love the possibilities here. Surface Dial, Pen, Touch Screen.
It may take a while to figure out the best combination of mapped functions and input devices (and which hand to use), but I can see this greatly speeding up some functions.
I love the look of the on-screen dial usage that Microsoft demonstrated last year (but as you pointed out needs a offer screen to be usable that way):
https://youtu.be/XBBF4X-frOU