T-Mobile’s efforts to cut subsidies amid trim margins have often been looked at it with shrugged shoulders by the larger carriers, at least while they weren’t looking at the same slim margins as T-Mobile USA. Now, Both Verizon and AT&T, the nation’s top two carriers are starting to scale back their own cheap upgrade offers to devices such as Apple’s iPhone and other smartphones. In the hopes of lessening handset costs, AT&T has … [read full article]