An over-the-air update has been rolled out to some T-Mobile G2 users which is rumored to bring important features to the table, such as native tethering and WiFi calling (aka UMA – Unlicensed Mobile Access, a technology that allows seamless switching back and forth between mobile phone networks and local wireless networks). T-Mobile already confirmed WiFi calling for Android devices, but the first two Android phones to be endowed with this feature were rumored to be the T-Mobile myTouch and Motorola Defy.

According to Android Police, it’s possible that T-Mobile are rolling this over-the-air update only to a few users for testing purposes only as no direct link to the download has been found yet and users are not receiving update notifications on their handsets. Having in mind the Open Letter containing T-Mobile’s response to locking the G2, there’s no information (yet) regarding the update and whether it will still lock the G2 or it will offer a possibility for users to apply a permanent rooting solution.

(Via: Android Police)