T-Mobile USA, with the help of RIM, look to be conducting a beta of OS 7.1 by the use of BlackBerry Beta Zone. User who had T-Mobile listed as their carrier in their Beta Zone profiles have received an invite to the beta program, as pictured above. There’s no word yet on which version of OS 7.1 those in beta will be able to test. It is at the very least a good sign that T-Mobile users should soon be getting access to OS 7.1, like their CDMA counterparts.

via BerryReview