Windows Phone 7.8 new features
The screenshot shows the Nokia internal training materials, mentioned about the difference between Windows Phone 8 and Windows Phone 7.8, compared with Windows Phone 8 system
1. New start screen (three different sizes of Live Tiles change)
2. Increase put inadvertently Screen security lock function
3. 20 theme color
4. IE browser security upgrades
5. Supports editing MP3 music files as ringtones
6. Support lock screen set to Bing wallpaper and so on.
7. Support Bluetooth to share multimedia files (DRM-protected)
8. Contacts transfer / sharing application upgrade.