T-Mobile's ‘free data for life’ tablet plan is no more – for new subscribers6
As of May 7, the offer is no longer available for new activations, although anyone who subscribed for Free Data for Life before that will be enjoying their 200 megs until their tablet dies of old age.
In consolation, the carrier would like to let you know that adding an unlimited LTE data line for your tablet costs $20 a month for customers on T-Mobile ONE, the unlimited plan. Given how little 200MB of data can do for you today, we'd say there's nothing here to cry over.
source: TMO News