Note battery improvements and imaging improvements as well as many other enhancements.
Today’s update brings the following enhancements to the Lumia 920 and Lumia 820:
Enhancements in Messaging
More efficient and reliable Bluetooth connectivity
More efficient and reliable start-up sequence
Enhancements in imaging performance and battery management
Additional platform updates and enhancements
The next bit I don’t seem to understand. Are the rest of the users supposed to wait until February 2013?
Although this update is initially available for owners on AT&T and Rogers in North America, we haven’t forgotten about Lumia owners in other markets. Rest assured, we are working with Microsoft and our operator partners around the globe to ensure the highest quality software updates for our family of Lumia smartphones. Together with Microsoft, we aim at beginning to deliver these updates to other markets in early February 2013