I just updated to RTW versiono one more article about
Full Screen mode in Silverlight 2.0. This article describe how to add in few steps, full screen mode to our Silverlight applications.
Updated article you can find here:
http://geekswithblogs.net/SilverBlog/archive/2008/06/10/full-screen-mode-in-silverlight-2.0-rtw-applications.aspx
Best Regards,
Jacek Ciereszko