It’s clear where the company is going here: it’s leveraging its new DirecTV acquisition and existing U-verse TV services to promote video streaming on the go. While the plan itself doesn’t bundle in specific home TV packages, it’s designed to work hand-in-hand with DirecTV and U-verse’s out-of-home streaming apps.
Source: AT&T brings back unlimited data plans for its DirecTV and U-verse subscribers | The Verge