ASP.Net 2010

Next generation of developer tool from Microsoft is available now (CTP version)

Some Links for ASP.Net 2010(4.0) explaining about the features of .NET Framework 4.0
http://msdn.microsoft.com/en-us/vs2008/products/cc948977.aspx

http://www.codeproject.com/KB/cs/concept_ide.aspx

http://blogs.msdn.com/somasegar/archive/2008/09/29/what-s-next-for-visual-studio-and-net-fx.aspx

You can also download the Beta Version of ASP.Net 2010(v4.0).

https://connect.microsoft.com/VisualStudio/content/content.aspx?ContentID=9790

Yet to lay my hands on it. But Can't wait.