Several people have already written about this, so I'll keep it short. I really enjoyed it; I reconnected with some people, met some Internet acquaintances and Security Twits in person for the first time, and met new people, too. I had a great time and I'm already looking forward to the next one.
Thanks again to Jennifer Leggio (Mediaphyter), Martin McKeay, Rich Mogull, Alan Shimel and everyone else who helped make it happen.
Mediaphyter's blog post has a pretty thorough list of attendees, scan it and you'll see why I am not trying to repeat the effort here.