Ohhhh, refreshing and snazzy, but tastefully familiar so it's not alienating, I like.
I see "like this" buttons though, hope those won't be any trouble. Forums with voting on individual posts can sometimes go a bit wrong, but that's usually if there's a dislike button anyway.
Actually in spite of this I was kinda hoping that forum avatars would've been allowed a bigger size, in that regard it doesn't feel as progressive.
Edit: Looks like pix.gbatemp.net got nuked during the switchover, and uploads weren't saved to the user gallery. Oh well.