There was a developer walkthrough over at GDC in San Fransisco and someone over at GameTrailers seemed to have recorded it, I thought it was pretty interesting, so why not share it to those who've missed it. And I hope I wasn't the only one. I looked around over the forums a bit, but I couldn't find any thread about this. Sorry if one already exists.
http://www.gametrailers.com/gamepage.php?id=3286
http://www.gametrailers.com/gamepage.php?id=3286
