The Windows Phone 7.8 update may soon reach other devices as not long ago, the Lumia 800 from Nokia received this update via the Zune desktop software.
Nokia has also recently unveiled two new devices which come pre-loaded with Windows Phone 7.8 and these include the Lumia 510 and the Lumia 505. This update brings some of the Windows Phone 8 features to these existing devices and comes with a few improvements.

Some new features include the new start screen, three different tile sizes, new boot screen and also Nokia’s proprietary camera lens update. It is unclear whether the update has started rolling out in all regions. It will eventually arrive on all devices and we might have to wait for a short time before it happens.