As '12070' rolls out to Nokia Lumia 800's around the world, you can keep an eye on the availability of the firmware for your own smartphone through the Nokia website. Follow the "availability information" link at the bottom of the page, choose your continent and country, and you can check if your Lumia 800's firmware is ready.

With various product codes, some on the same network, its important to check the product code on your Lumia 800 - you'll find it on the back of the SIM card tray.

To remind you, the change log and Nokia's own video on the update:

• Battery life improvements with improvements made to standby time, 3G talk time, WiFi browsing time and music playback time. There are also fixes for a number of battery related issues (e.g. some devices were not using full battery capacity).
• Audio equalisers have been modified to offer wider frequency response, including better bass.
  
• The Camera application's defaults have been tweaked, with focus mode now being 'Normal' and not 'Macro' (the original default was to enable easier QR code scanning, but that seemed short sighted, given the relative balance between the use cases).
• White balance issues with the Lumia 800 camera have been fixed, along with other camera performance tweaks.
• The internal Diagnostics utility has been simplified to make it more accessible to end users.
• Fix for the issue where the capacitive buttons only lit up at certain screen brightness levels has been fixed.
• Fix for issue where, in certain situations the screen was non-responsive when ending a call.
• Fix for issue that caused a spontaneous reboot in certain network conditions.

We've got the firmware running on some of the AAWP Lumia 800's, and there are clear improvement in the power handling. With this information, there's improvements in customer handling as well. More on the firmware and it's day to day impact next week (probably on the weekly Insight podcast).