There were about 50 vendor booths, plus a keynote/lunch area. Mike Simons attended a few keynotes. One was regarding the fact that security compromises are much different today, than in the past, thanks to laptops and VNC. Some worms are written to target particular companies, for corporate espionage. They spread, as usual, but once they infiltrate a certain domain, they act differently (collecting information, etc.)
Also of interest... California recently passed legislation that says if you have private information in a database, and it gets hacked, you must inform the people who are affected within 2 weeks (unless law enforcement tells you not to, as it would affect their investigation).
Presentation notes (PDF)