Web 2.0 Expo: Full House (and locked out)

Web 2.0 Expo WorkshopsHmm. Web 2.0 Expo is not getting off to a great start, workshop-wise. I’ve just been turned away from the Usability session on the basis that “it’s full”.

The other workshops I’ve attended have been standing room only. Someone appears to have made a serious miscalculation on needed room sizes for these workshops. 
Between this and lunch, I’m rather worried about how they’re going to managed the next couple days – which are planned to be even more busy.