It does happen that folks don't show up but I'm thinking the place is going to be filled with mid-west and west coast YouTubers that couldn't attend the prior east coast events.
My understanding is that the parts of the conference will be live streamed. What am I saying? The place is going to be packed with people, computers, mobile phones and massive Wi-Fi demands.
The hotel IT and media AV people are going to be crying around 11:30 a.m. I've seen it happen. Unless the hotel folks were really briefed on the needs of the users of the conference there is a server or two that is going to go down.
Anyway, maybe by Sunday a chunk of folks will be burned out, go home and I can slip on in. Seems like that would be closer to the spirit of an un-conference anyway.
No worries, I still have NonCon2010 as an option.