I just found this thread today, and read the whole thing
I think in the main you guys have a good grasp of the issues
and I also think there is room for another digital rangefinder, but that it wont be a Canon. The dSLR market is going to be furious this year, as P&S sales are expected to top out. With Sony wrestling the #3 spot from Olympus, some diversified content is desirable.
The 'more' perfect candidate is Olympus, and the four-thirds sensor and lenses. With respect to Jaap, The D3 lens has IS, and thats why it looks quite large, for at its heart the four thirds system is almost a half frame 35mm system. I believe the E3 which is to be seen shortly, will have the kodak sensor experience brought onboard by the M8 experience. Exceptional resolution, but without many of the issues due to the longer register of FT.
It would be good for Olympus too, because the whole reason they got into four thirds was the performance of lenses, and of those in particular wide lenses. FF while it 'sounds' desirable, just has too many issues to conquer, and for what end.
To achieve this, Oly would have to establish some new prime lens designs to cover the ultra-wide fast lenses I guess we would all desire. Perhaps a 10, 12, and 14mm.
What escapes me, is how the rangefinder window would be configured, because like it or not, we now have a range of zooms that would get respectable employment, and the framing issues get suddenly bigger.
I would expect (dont hate this too much) that this camera wouldnt be so far from a digital point and shoot, with interchangeable lenses, traditional Oly construction, no popup flash, no mode BS, perhaps encompasing the fine idea of fly by wire focussing the Canon gentleman suggested, maybe too thats part of the answer for the rangefinder view, as Olys too have coded lenses. I guess it would have a live view LCD as well, not like how its configured on the dSLRs tho.
This would be a pro quality camera, either a B body for E3 owners, or the prime machine for wedding photographers, reportage, and street shooting.
Riley