Sorry, got this rather late, but for anyone interested, the System.Xml team be on for the next hour or so:
Title: C# and XML
Use XML? Use C#? Have some questions, comments, or just want listen to people talk about your favorite technologies? Join members of the C# team and Dare Obasanjo <http://blogs.msdn.com/DareObasanjo/> of the XML/Data team for a discussion about C# and XML.
Chat room: http://communities2.microsoft.com/home/chatroom.aspx?siteid=34000014