Euan did a wonderful session in MIX10 on Improving Software Quality for the Modern Web. The session includes various demos of Coded UI Test and Fast Forward in test runner including never seen before demo of Silverlight support for Coded UI Test.
The new demos were located at the following time hacks (to save you listening to the entire thing).
25:30 Exploratory Bug
34:30 Firefox Fast Forward for Manual Testing
47:15 Visual Verification API integration (advanced bitmap comparison algorithm)
53:30 Silverlight capture, playback and verification