Every time a carrier says “no upfront cost,” I brace myself for the asterisk buried in the fine print. T Mobile’s newest 36 month financing plan has one too, though it’s dressed up quite nicely. T Mobile, the second largest wireless carrier in the United States, just rolled out a financing option called EIP Flex 36 . As the name suggests, it stretches device payments across three full years instead of the usual two. The real hook, however, is what it lets you skip at...