But it doesn't look like it at all, at least not with my eyes. Most of the games shown looked like super-polished PS3 games, for the videos that actually showed gameplay.
I'd kind of expect that. Those demoes were beta-software, using grphics systems in their late beta-stage, running on an os in late beta-stage. I'm not even sure if Sony really gave acces to all the nifty things in the hardware at that time. Launch software will probably look like polished PS3 software, but without frame rate chaos - which should aready be good enough for most gamers.