While Zer01 didn’t have anyone at their booth several times we walked by, we certainly do get a flurry of emails every time we call them an MVNO.
So, we’ll say it again, Zer01 is an MVNO. They are ambitious, and are preparing to offer something that could be game changing (if it actually works), but realistically… it’s got to work nationwide. And, that will put their MVNO deals to the test… regardless of how many circuit-switched backends they own.
More to the point, will AT&T and T-Mobile let them stay on their network if their VoIP-driven unlimited voice begins under cutting their service? We doubt it, Vonage-lawsuit-style.