It seems that Microsoft is getting into Web standards with Asp.net 2.0. By default, all web controls will emit valid Xhtml 1.1. However, for browsers which don't support or render Xhtml 1.1 fully or correctly, the controls can emit markup compliant with past standards such as Html 4.01 or Xhtml 1.0 Transitional. (I'll be very disappointed if that turns out not to be the case.)

It would be a great innovation if InstantForum.NET 4.0 - or whichever version will be released after .NET 2.0 is released - could do the same and emit valid Xhtml 1.1. It would be a lot of work, but then all innovations are.