I've always wondered: If any of the OEM manufacturers wanted to play hardball with the Tamrons and Sigmas, etc., why wouldn't they encode their cameras to just make it next to impossible to use anything except their own lenses on their cameras? I would think it would not be hard for Canon or Nikon to include code that would make life very difficult for aftermarket lenses (or flashes for that matter).
I don't know exactly who all Canon has government contracts with, but gee it would be a lot more fun if it was coming from the Black World . . . . .
For guys that wanted an X10 or 20 that would fit in a shirt pocket, and the XF-1 was just a bit too wierd control-wise (manual zoom?) and too EXR, this is just the ticket, even though it obviously is not mining quite the retro vibe of the rest of the X range.