Piyush and IDisposable just released version 2.0 of the ASP.NET RSS Toolkit to CodePlex. New features include feed aggregation, atom support, full element parsing (including attributes), more robust custom class generation and more.
http://www.codeplex.com/ASPNETRSSToolkit
http://blogs.msdn.com/shahpiyush/archive/2007/06/16/3331941.aspx
from
http://blogs.msdn.com/jongallant/archive/2007/06/18/rss-toolkit-2-0.aspx