AT&T to push Windows Phone 7.5 Mango update on September 27th

AT&T will begin to push the official Windows Phone 7.5 Mango update to its existing Windows Phone devices next week. The HTC Surround, LG Quantum and Samsung Focus will receive the update beginning Tuesday, September 27th, while the HTC HD7S will be updated to Windows Phone 7.5 some time before the end of October according to an internal AT&T memo obtained by BGR. To update your device, you will simply need to plug your Windows Phone into your computer and launch Microsoft’s Zune software. Windows Phone 7.5 will offer users more than 500 new features.