Following tightly on the heels of Windows Phone 8.1 and new hardware from Nokia, T-Mobile and AT&T have both announced they will carry the Lumia 635. T-Mobile is trumpeting the availability of the Lumia 635 on its network as a solid step from the Lumia 521, which it saw massive success with, while AT&T sees this as one more device in a long line of Windows Phones it carries.
Full story from the WPCentral blog...