Only in the confusing realm of smartphone data plans can 'unlimited' not really mean unlimited. We started to see the big carriers cut back on all-you-can-eat data a few years ago, and T-Mobile was no different. The nation's smallest national carrier relied on vague language and semantics to justify its continued use of the word 'unlimited.' Now it looks like T-Mobile is going to finally offer real unlimited data again.
The new unlimited 4G data plan will be available starting on September 5, and it does away with all the caps and throttling that angered power users.