New smartphones are faster and nicer, so people use them more often and pull more data, right? That’s the official T-Mobile stance regarding their move to axe their 200MB data plan, according to a leaked internal document. That means the last sub-$20, cheap data plan is now off the table. AT&T and Verizon still offer 300MB shared data plans, but there’s no more single-person light data plans. Existing T-Mobile customers are grandfathered, but the smallest plan someone signing up for a new T-Mobile account can buy is 2GB for $20. But the real bargain for T-Mobile subscribers is the very Sprint-like unlimited data plan for $90 with unlimited talk and text.