The Last Major Update for Windows Phone 7
Many Windows Phone 7 users were disappointed to learn that they would not be able to upgrade to Windows Phone 8. However, Microsoft will give Windows Phone 7 users some of the features of Windows Phone 8 with a new upgrade dubbed 7.8.
A Microsoft video shows that Windows Phone 7.8 will offer the Windows Phone 8 start screen interface, specifically the ability to change the size of live tiles. Now users will be able to select small, medium, or large tiles, giving them greater customization capabilities. No word on what other features might be included in the 7.8 upgrade.