Scott Mitchell has an article on 4GuysFromRolla.com about my favorite pet peeve of .NET: the way MS effectively knee-capped the competition with the ASP.NET browser cap and rendering engine. The disclaimer in the orignal browser cap section points at a “no update available, we're working on it” page that has been up for years. I am starting to doubt their honesty...
More info here: http://slingfive.com/pages/code/browserCaps/