I think Microsoft has made a smart move in renaming WinFX (including .NET 2.0) to .NET 3.0 (see blog post by Soma Somasegar). First of all there was a lot confusion about what .NET and WinFX are, and secondly WinFX is often confused with WinFS (the new file system). Us developers can all do with a little less confusion finding out way through development technologies.