I meant LED - the broad category, OLED is a type of LED.

I guess you'd need to wheel around a hydraulic trolley for the CRT battery pallet to get a days use out of it, and the phone would have to be about 5 inches in width to accommodate the glass, but right you are, it would rock :-) Very retro. You would even get one of those yellow and black high voltage warning stickers on the back.