They said on stage at the event Platinum Demo "lets users experience the final graphics of the game". It's interesting to watch a narrative form that it's something they just shit out, despite that. I'm honestly not getting my hopes up for the retail game to run or look much better. Which is fine with me. I think it's gorgeous.
I think it's gorgeous too (and think people who say it looks like a ps3 game are out of their minds), but I don't think it running better or smoother is too much to ask for. Hearing it's more frame-pacing issues rather than actually horrid frame rate hopefully means it'll get worked out.
I guess asking for a constant 1080p resolution and proper AA is too much to ask for though.