Ramblings from another nerd on the grid
Michael S. Scherotter created a stunning Silverlight application using Expression Studio. See the full frame version at http://xmldocs.net/ball/. I particularly like the night mode. For details on the creative process and mechanics, see his blog post at http://blogs.msdn.com/synergist/archive/2008/05/24/beauty-with-silverlight.aspx. Here's the iFrame version of the application.