Started the update to Windows Phone 7.8
Windows Phone 7.8 is the last major update for first generation Lumia devices, and other smartphones running Windows Phone 7.5. All of these devices will never be updated to Windows Phone 8.
Update brings some of the visual features of the WP8 – new homescreen with live tiles resizable, and new colors for interface elements. Also added a new lock screen.
But Nokia’s which have already started to update: Lumia 510, Lumia 610, Lumia 710, Lumia 800, Lumia 900.
To check for updates, connect your device to PC and launch the Zune app, but if you are a Mac user, use the Windows Phone Connector. If an update to you until you came, do not worry, you will surely receive it, just the deployment process reportedly may take 3 weeks.