Here's the source for Part 6 of the XNA to SilverXNA tutorial series based on the AppHub Platformer sample running under the Windows Phone Mango Silverlight / XNA Integration.

Here we add a bit of flair to our UI assets using a little animation by applying both Visual States and Storyboards

Note
You will need to be running the at least the RTM/RC release or above of the mango tools in order to run this.