UPDATE: Video & Screenshots of GDR3 on Nokia 920

Originally posted on wpcentral.com

Windows Phone 8 GDR3 and Bittersweet Shimmer demonstrated on a Lumia 920 (via WMExperts)

href="http://cdn0.sbnation.com/imported_assets/1793197/Bittersweet_Shimmer_GDR3_screens.jpg">Bittersweet_shimmer_gdr3_screens_medium

via cdn.wpcentral.com

Gdr3_driving_medium

via cdn.wpcentral.com

Gdr3_screens2_0_medium

via cdn.wpcentral.com

Possible confirmations:

  • Custom sounds for text, voice mail, e-mail, and reminders
  • Restore over Wi-Fi when you reset your phone
  • Huge amount of work on Bluetooth with various vehicles and devices
  • Driving Mode
  • Silent NFC
  • Rotation lock
  • Close apps in multitasking window
  • App names on bottom of multitasking window
  • Coded as 'Bittersweet'

Unconfirmed (so prob not included)
  • Separate volume controls
  • Notification centre
  • Gapless playback
  • More live tile sizes
Take this with a pinch of salt as the guy said he got it off Craigslist and is v.slow to answer simple questions about the phone. Personally I'd upload a video rather than a bunch of screenshots.

(This was typed on my iPad, so it was rushed)