You beat me by two minutes! I was just about to post about this. I agree almost completely with this design philosophy apart from this bit:
"Controls:
Minimal. Just a fingerwheel for EV shift and an exposure compensation dial. Manual exposure setting would be possible, but from the menu."
No no no. I would want a manual shutter speed dial (with an A setting if required), an aperture dial (with an A setting as and when required), and a manual ISO dial (with an A setting as desired). I think this triangle exposure relationship should be exposed as much as possible, and this set up allows for anything from complete auto to complete manual.
I would also prefer rangefinder focussing to auto-focus.
As soon as they build something similar to this (or a 1.6x crop sensor in a GR1, or a Hexar, or similar) the credit card will be coming out to play.