With the huge numbers of feedback Nokia received, the Finnish mobile company has announced the availability of a software update bringing numerous enhancements to the Nokia Lumia 900 in both United States and Canada. For US Lumia 900 customers, the update brings Flip-to-silence feature, Camera performance enhancements, Battery performance enhancements and Startup sequence performance enhancements. While, for the Canada Lumia 900 customers, the update includes Flip-to-silence feature, Support for Contacts Share app, to send and receive business cards as text messages, proximity sensor performance enhancements, removes purple hue which affected some phones in low-light conditions, startup sequence performance enhancements and camera performance enhancements.
To get the update, you can use Zune for Windows: