new Start screen coming in the update along with the three Live Tile sizes to help personalize the phone. Twenty themes, matching the number found in Windows Phone 8, are aboard. Internet Explorer has security updates and MP3 files can be edited to produce a ringtone. Some of these features were already leaked at the end of last month.
Other features coming to Windows Phone 7.8 include the ability to use Bing wallpapers to customize the lock screen. As we get closer to the actual Windows Phone 7.8 update, you can expect more features to be announced by the Redmond based firm. Those who bought Windows Phone 7 handsets from carriers in the states still have to do the remainder of their sentence before updating to Windows Phone 8 which means they are probably quite grateful for every new feature on Windows Phone 7.8.
source: Winp.cn (translated) via WPCentral