AT&T Lumia 900 Windows Phone 7.8 Update Appears Set for January 30th is a post by Adam Mills from Gotta Be Mobile.The long-awaited Windows Phone 7.8 update for previous Windows Phones will evidently start rolling out to devices on January 30th, starting with, rather surprisingly, the AT&T Lumia 900, the carrier’s once-flagship Windows Phone 7 device. Read: Nokia Lumia 900 Review. While not yet confirmed by AT&T, WPCentral reports that the Windows Phone 7.8 updates will begin with the AT&T version of the Nokia Lumia 900. The January 30th roll out date is one day earlier ... Read More