In the last few weeks, T-Mobile introduced its One plan for unlimited data and then tweaked it after customer complaints. For power users, T-Mobile’s claiming several tech advances that combine for a max download speed of 400 Mbps. But you’ll only get those blindingly fast rates using a Samsung Galaxy S7 or S7 Edge within one of 319 cities, and only after a pair of software updates by the end of October. – David Lumb, Engadget http://ift.tt/2bVDuWp