Was there any media coverage?
The media coverage beforehand basically just advertised the event, but there was an interview piece with Henry Winkler in one of the LA area publications. I can't remember which one now.
There are photos from the event on
WireImage.com, and David is included. This was going to be included in my next announced site update, but I'm a little overwhelmed with other bs at the moment.
(By the way, the people who organized this were very nice folks. They actually took time to email the webmasters of various fan sites who plugged this event to thank them for doing so. You don't see that very often.)