Hehe, Ico didn't field render in the classical sense. It didn't run at 60hz alternating the scanlines - it run at 30, updating only one set of lines. Good to hear about prog scan as this means better image quality (the E3 video setup was atrociously bad for this game, though - prog scan was not enabled for sure, and it was probably connected to LCD TVs using S-video) but I'd rather they go with Ico way of rendering and keep the framerate at steady 30FPS (the E3 demo of SotC had unstable framerate). I doubt Sony would allow that video mode anymore though.
As for gameplay, atmosphere and freshness of the experience, SotC felt a whole lot more "next gen" than any actual next gen game on the show floor. The game certainly wow-ed players and on-lookers a whole lot more than new NFS:MW, Condemned, Top Spin 2, or random WW2 shooter #45432...
Same goes for Okami. Remember that scene from PS3 unveiling where they had dead landscape transforming into life? Well, Okami has it's own rendition of such scene, and I kid you not, it looked more beautiful and appealing despite being obviously nowhere near on the pure technical level to the tech demo scene.
Almost mkaes me want these two games are pushed to PS3 with no graphics updates whatsoever, just made to run at 1080p with perfect framerate (framerate is not problem in Okami but it is occasionaly in SotC) Here's hoping PS2 emulation on PS3 will allow such resolution enhancements.