it seems silly for canon to suddenly go to a fourth sensor size when a couple of things have been demonstrated already:
1. Leica showed you can cram a FF sensor into a mirror-less body without getting crazy vignetting
2. Sony showed you can cram an APS-C sensor into a mirror-less body and actually get something smaller than a 4/3s system
why would Canon go out of their way to make their R+D process more difficult by stooping to a 4/3 sensor, when they have a great APS-C sensor to stick in the thing? if they did go with 4/3s, they would have little competitive advantage over the 4/3 manufacturers, and would be behind the curve when it comes to competing with Sony. Canon's made clear a few times that they regard Sony as a serious threat and are as interested in matching up well against Sony as they are interested in matching up against Nikon, maybe even more so.
I don't doubt Canon is pursuing an EVIL-cam and I'm stoked for something I can use as a back-up body, but I call major BS on this spec list.
in terms of what I'd like to see?
15-18 MP APS-C sensor
slightly larger and more robust form factor than Sony NEX series
adapters that allow AF with EF and EF-S glass (at the minimum with EF-S glass)
the sweet new screen from the t2i (which is mind-blowing, I thought my screen on the 5D2 looked good but it looks crude and smeared compared to the t2i's)
anywhere from 3-6 fps
pop-up flash, and hotshoe mount as well
would this thing have to be phase-detect or can we still shove a traditional AF system into it? 9 cross points would be sweet