Well, that "trial" didn't last long at all, now did it? Just days after teeing up a $50 unlimited voice plan in the great city of San Francisco, T-Mobile USA has reportedly taken said plan nationwide. Users are already buzzing about the widespread availability, though it should be noted that the same "loyalty requirements" from the San Fran pilot are still in effect for the rest of the nation. In other words, you have to have been a T-Mob subscriber for at least 22 months and have been in good standing the whole time. Oh, and being cute probably helps.