Wow. That’s what we have to say right now about Uncarrier 8 from T-Mobile. Starting soon, T-Mobile customers can roll their data over month to month. Rather than have to pick your plan and hope for the best -- or worse, throttle yourself and how you use your phone to avoid extra charges -- T-Mobile is letting their “post-paid” customers roll data over month to month. In addition to all the other Uncarrier moves T-Mobile has made recently, it’s getting much more difficult to argue against having them as your service provider.