The upcoming General Distribution Release 3 (GDR3) update for Windows Phone 8 has made its way on a Nokia Lumia 920 that a WPCentral user purchased from CraigsList. The update brings support for full HD screens and quad core processors on Windows Phone and is expected to be launched with Nokia’s Lumia 1520. In the video, the user demonstrates some of the new features of the update such as the option to close apps from the multi-tasking view as well as allow screen rotation. Microsoft is also working on a Driving Mode that allows you to mute calls and text notifications when paired to a car through Bluetooth. Speaking of notifications, you finally have the option got custom alerts for text and emails.