Elephants or ants: Will MVNOs make a dent in national carriers?

Reblogged from GigaOM:

There is a revolution happening at the low end of the cellular market, with new operators launching services that cost less than existing data plans from the big four operators in the U.S. But can these startups grow large enough to change the way mobile data is priced and sold in the U.S.? That was the question that the CEOs of of three new MVNOs tried to answer at…

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