The Silverlight Unit Test Framework ships officially inside of the Silverlight Toolkit, since the team has a dependency on it for thousands and thousands of unit tests. I recently did hear a few complaints that the Silverlight Unit Test Framework site on the MSDN Code Gallery is a little out of date. I hear you, and am going to try to refresh the wiki and documentation a little bit. In the meantime, I've updated the site with the latest Silverlight 2 Unit Test Framework binaries for download. Here's a direct link to the download. I don't have any updated bits available for the Silverlight 3 Beta at this time.

What's new in the July 2009 bits of the Silverlight Unit Test Framework?

• Support for the [Timeout(...)] attribute on test methods.
• Improvements to the Test Service interface. The service now has an asynchronous reporting phase that allows for more robust automation options (details coming soon).
• Minor interface changes
• Minor bug fixes

I'll try and get updated templates produced this month as well. Hope this is useful!