"As previously announced, with Windows Phone 7.8 we’re also bringing the feature to existing Windows Phone 7.5 devices. During the development process, I used builds of 7.8 on my Lumia 900 and it felt like a completely new phone: resizable Live Tiles totally change the way I do things, providing faster access to more of my favorite people, photos, and apps.
Windows Phone 7.8 also includes some other cool stuff. It doubles the number of theme and accent colors—to 20—so you can make your phone even more personal. There are also new lock screen features: the option to automatically display the Bing Picture of the Day plus the ‘A1B2C3’ PIN/password challenge to prevent accidental device wipes on phones connected to Exchange accounts."Windows Phone 7.8 users will also get access to some popular games, including: Words with Friends, Draw Something, and Angry Birds Space and Angry Birds Star Wars.
Check out the Windows Phone blog for more details.
[Via Microsoft Windows Phone blog...]