Whoever is managing the Windows Phone Italia Facebook page was more talkative, however, and answered a question from a fan, revealing the new features that v7.8 will bring. The response has been deleted since.
The list includes the new homescreen (which we already knew), something called 'Club', which we guess is Rooms, Xbox Music and SmartGlass.
Facebook is hardly a reliable source of info, but the features listed seem quite probable - we already know about the homescreen, Rooms and SmartGlass are available for other OSes too, so it's unlikely they will be excluded from WP7.8 and Xbox Music will bring the existing user base to Microsoft's new music service.
In case you don't know yet, Windows Phone 7.8 will be released for 7 and 7.5 devices, as the old hardware won't get updated to WP8.
Source (in Italian) | Via
Here is the post translated to English
"The upgrade to 7.8 will be available for versions 7.0 and 7.5 shortly after the marketing of the devices Windows Phone 8.
Among the features are the new Start screen, the sharing of the calendar using the function Club and access to key Microsoft services and content, including Xbox Music Store library that can be enjoyed by Zune and Xbox SmartGlass.
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