I would like to have a patch/setting that will keep the Touchstone-style clock showing when I'm charging over USB -- basically the exact same behavior for charging via the side USB port as it already does when charging on a Touchstone.

I particularly want this for when I'm driving (this would make for a great dashboard clock -- my car stereo display is nearly invisible during daylight hours). This would also allow me to continue using my Pre as a bedside clock when I'm on the road (since I don't always take my Touchstone with me).