As we continue the saga of the Lumia 920 loaded with GDR3 (Windows Phone 8 Build 10484), the forthcoming OS update from Microsoft, this afternoon we can bring you a video of the updated OS being operated.

The video comes directly from the leaker in our forums, xs2k, who was kind enough to provide Windows Phone Central with a copy earlier this morning. The nearly four minute video, mostly silent, shows the OS being manipulated and various features being revealed, confirming the authenticity.

Features in GDR3 + Bittersweet shimmer that are now confirmed include:

  • Custom sounds for text, voice mail, e-mail, and reminders (not seen in this build of GDR3)
  • Restore over Wi-Fi when you reset your phone
  • Huge amount of work on Bluetooth with various vehicles and devices
  • Driving Mode
  • Screen rotation lock
  • 'X' to close out apps in multitasking
  • Icon for multitasking apps
  • General performance improvements
  • 1080P Display support (for new devices)
  • Support for new Qualcomm chipsets

We may have more video footage to bring you later today, based on feedback in our forums. Stay tuned...