The event had celebrities like Chris McDougall, author of Born to Run, and Barefoot Ted, as well as Dan Lieberman, the Harvard professor who did a study on barefoot running. While I can't chime in on the run since I wasn't able to attend, please check out the writeup on BirthdayShoes.com from two firsthand participants.
Next year I'll make it a point to be there, though a part of me definitely regrets not being able to attend the inaugural run. If you're interested in learning how to run barefoot or in the Pose technique, check out my Running page and sign up for a clinic!