WinFX == .NET Framework 3.0
Microsoft has decided to rename WinFX to the .NET Framework 3.0. See Soma’s blog for details.
Along with this renaming and based upon customer confusion around the naming of the WinFX Add-in assemblies and their ship vehicles, I will henceforth, refer to the Add-in work I am involved in as System Add-in. So once again, I have to say “The only constant is change” ;-) and of course "A rose by any other name would smell as sweet".