.NET Framework 2.0 + WCF + WPF + WF + WCS = .NET Framework 3.0
Well,
I was getting ready to write this cool, earth shattering blog entry, but I was beat to the punch in a fancier fashion. So instead, I will summarize, and point to the resources :-)
.NET 3 is a collection of technologies and addons to the 2.0 Framework. It is not in my opinoin, and confirmed now a bunch of new bcl or clr stuff. It's features, platform, powerful features that may be rich and complex, but nevertheless, it's features.
Kirk Allen Evans' Blog
".NET Framework 3.0 uses the same C# and same features that were released in October 2005 with .NET 2.0, formerly code-named "Whidbey"). We didn't change the framework, we just added a couple new things to it."
.NET 3 looks like this:

There are some cool things like LINQ and Entity Framework which are not being released yet, those will be part of the next C# Language set release or BCL / CLR actual Framework update. .NET 3 uses the same 2.0 Framework.
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