What I'm saying is that I think they are using Level 3 for the whole stack, not just circuits. I think L3 is doing the captive portal and everything else. I could be wrong though.
Do you really think Starbucks would give up its captive portal? Have you seen it? It's full of Starbucks branding and content. I don't see that aspect disappearing with the new provider.
Source: I was the Wayport CTO.
edit: I said Google acquired Wayport. It was AT&T.