The S2 makes sense to me (NOT for me). Modern film SLRs were getting quite huge. Then, with DSLRs, they've gotten even bigger. The 'pro' DSLR models of Canon and Nikon are gigantic in my mind, and people have no qualms about strapping on huge lenses onto them and carrying another 5 in the bag. My point is that the size increment of the S system over say a Canon 1DSIII is not that much. The image quality should be a big jump though, as I think full frame 35mm digital is starting reaching the limits of what one can do in terms of sharpness and lens design. They're pushing the limits there. With a big jump in sensor size and new lenses designed for the system, I think they might have something, and they give themselves a lot of latitude to improve over current 35mm full frame DSLRs. Of course, it might not sell at all...