Nokia today indicated that the firmware update planned to reach the Lumia 800 later this spring has been moved up and will be pushed out starting today. The newest software version is 1600.2487.8107.12070 and improves battery life, power management, camera performance, and in-call audio performance. This update does not, however, bring mobile hotspot or data tethering features to the Lumia 800. Nokia and Microsoft are still working to add those features. The update will be rolled out in stages over the next four weeks. Lumia 800 owners are encouraged to check Nokia’s web site to see when the update will become available to them.