According to WPDang, a Chinese tech site dedicated to Windows Phone, we may be seeing an unannounced software update for all Windows phones with 7.5 and below, and not only that, but the update may start to roll out globally today from 18:00 GMT.
Like previous updates, the 7.8 update will be pushed out in 4 waves over a total of 3 weeks, so if the rumor is true, you may not get the update right away. However, this is a nice bit of news for older Windows Phone users, especially when Blackberry 10 is about to hit the market.
There has already been a rumor regarding a 7.8 OS update for the Lumia 900 for AT&T scheduled for this date, so it’s likely Microsoft are up to something today. The new 7.8 update will add a few new features like a customizable home screen and lockscreen wallpaper, as well as a bunch of Nokia handset-only features.
Could you do with a Windows Phone update or are you perfectly fine with your current version of Windows Phone 7?[Source]