Over 300 users reading this topic, damn.
Also, I'd just like to mention that I had a laggy bit on my viewing of the webcast, where it showed Joe leaning back in slow motion.
He looked like the coolest samurai ever.
I think the best way to view it is directly from iTunes.
Go to the iTunes store, and you'll see an iTunes Festival link. I assume that, come show time, you can easily view the webcast from there.