AT&T announced today a new plan feature for its mobile share value customers: shareable rollover data. The carrier says more than 50 million subscribers will automatically gain the benefit when it kicks off at the end of the month on January 25th. If this news sounds familiar, that’s likely because competing wireless provider T-Mobile became the first of the big four national carriers to offer rollover data with its “data stash” feature announced last month alongside a free 10GB data promo. Here’s how AT&T says its version of rollover data works:

expand full story