this vid is from a sf4 release party in LA last week. there are more in the guy's channel too.
valle / ricky as ryu (2p), cole as guile (1p), with a justin wong cameo. also a comment about no parry when ricky loses a round.
this video has lots of discussion about how the game works.. pretty interesting.
i saw sf4 live for the first time today at comic con. there was a tourney going on when we went, and then the freeplay line was really long, so i didn't play. there's still a lot of stuff i don't know about the game. supposedly, at an arcade, a group of sf4 cabs are networked together or something, and challenges can occur between any of them.. or something. not sure. you can also register a card that keeps track of your win/loss record.
of course the game has gotten more playtime in japan..
someone vs. daigo