Following in T-Mobile’s footsteps, AT&T has added monthly rollover data to two of its GoPhone monthly plans in the $45 and $60 monthly plans, which feature 1.5GB and 4GB of monthly data respectively. For every month that data is leftover on either plan, that data will be rolled over until needed for a maximum length of 30 days before being reset. The changes go into effect on Friday, May 15th.
