There is no doubt that T-Mobile has had an incredible run of success over the last year and a half. However, there's some real question about who T-Mobile's success has been hurting the most -- for while the "Uncarrier" loves to portray itself as the scourge of Verizon and AT&T, those two mega-carriers have not been losing subscribers or hemorrhaging money. Instead, it seems that T-Mobile's gains have come at the expense of smaller prepaid wireless carriers.
T-Mobile’s incredible recent success comes with one major asterisk