I wonder if they are looking at MF as a way to get more pixels, as they don't seem to be able to get much more on the current sensor fab. Bigger sensor, more pixels, but again, their goes all the R&D from APS-c and 35mm DSLR's. If Canon did decide to develop a MF, would they need to develop a sensor? The current MF systems all use a universal sensor pack from 1 of the two companies that offer them? Except leica of course. OK, enough rambling..