I switched over to non-electronic photography just in time. I just sold the last of my Canon EF gear and nearly have the first phase of my FD kit buit up. Sure, I could put a battery in my Canon F1, but I use my spot meter, so what'd be the point?
I can see one very interesting twist. If such technology becomes widespread, then maybe Paparazzi will be driven back to using film in cameras with spring driven shutters.