This is huge publicity. I am shocked so much has happened so fast for Justin.tv. Does anyone know much about the hardware they are using? I know Justin carries

This is huge publicity. I am shocked so much has happened so fast for Justin.tv. Does anyone know much about the hardware they are using? I know Justin carries a backpack everywhere, which I assume contains a laptop with a wireless broadband card. Does anyone know what type of wireless network they use? They stream a fairly high quality video image even when completely mobile.