I'd be really surprised if Canon, Nikon, Sony, Panasonic, Panavision, Arri, Dalsa, and everyone else did not pee their pants this morning in fear.... This is absolutely amazing.
If I was Canon I'd be figuring out 24fps and audio for the 5d II. The door to be the camera that replaces 35mm adapters is WIDE OPEN if they can do that. 2/3", 15-25mm at F2.8 isn't going to be flexible enough for a lot of people... it's really a S35mm Scarlet system vs. the 5D II... Canon has some room to operate there. But they'd have to pull their head's out of their butts.