TechCrunch 50 Live Update: No Wifi

I'm at TechCrunch 50 and there has been no wifi thus far... causing small riots in some cases.

While everyone searches for wifi signals, Yammer.com created their own closed network purely to promote themselves. Not sure if it's genius, shameless or stupid (since no one can get online anyhow). Probably a combination of all:

Yammer Wifi