The Nokia Amber update, which combines the Windows Phone 8 GDR2 update with Nokia’s own enhancements, is already shipping on the Nokia Lumia 925.

Unleashthephones.com have however posted a hands-on video with an early build of the OS running on the Nokia Lumia 920.

The video demonstrates the Always on Clock, Double Tap to Wake, Nokia Smart Camera app and more.

The update is expected to bring:

Always ON Clock

Double Tap to Wake

Nokia Smart Camera App

Enable FM Radio Support

Enable DataSense feature on more carriers

CalDav & CardDav support

More Backgrounds for Lockscreen

The update is expected to hit all Lumia handsets in August this year.