Read original post at Kunal Chowdhury's Blog
The Windows Phone SDK update for WP7.8 is already there and many people already started receiving the WP7.8 OS update in their existing WP7.5 handsets. If you are a developer, you might want to integrate the new Live Tiles in your existing application to give it a good look.
In this post, I will guide you to update your existing apps to include the new live tiles. Continue reading to find out the step-by-step process to integrate it.