I just finished speaking at Seattle CodeCamp v4.0 about dynamic languages in Silverlight, titled Browser, Meet Ruby and Python. Here's my abstract:

People entrenched in Visual Studio all day [sometimes] forget how powerful a command-line and a text-editor can be. Remember, these are the *tools* that built and continue-to-build the web. With nothing else up my sleeves (I wear short sleeves) I'll build a cool web applications with IronRuby, IronPython, ASP.NET MVC, and Silverlight, and show you why scripting/dynamic languages are powerful and productive tools.

Of course, that didn't end up being my exact talk, but close enough. I talked about REPL's, IronRuby, Silverlight, and Hippies. Here are the slides (rename it to pptx since my web server is reporting it as a zip mime-type), but I'll be making subsequent posts about the specific things I showed. Stay tuned!