It's funny that you should bring this game up. I was just about to resurrect the motion blur thread because I recently found a 75MB 720p trailer lying around on my harddrive.
The motion blur is really well done in this game. I'm not at all sure how they do it, but its a post processing technique and I haven't seen any glaring artifacts anywhere. No sampling artifacts either, so the blurring itself is well done as well.
I really like the lighting. Good HDR, looks like subsurface scattering / PRT, parallax mapping, excellent animation, the works!