Well I have been really excited about the upcoming WinFX release and I’ve been learning all I can about WPF, WCF, and WF. There’s been some confusion in the marketplace about .NET Framework’s role in WinFX so Microsoft decided to change it’s name. The combination of the .NET Framework 2.0 and WinFX will be known as…
.NET Framework 3.0
I guess this finally explains the 3.x version numbers on all of the dll’s in WinFX.
Here’s a link to more information on the name change: