Orcasリリース時の.NET Fxのバージョンは3.5らしい

Jason Zander’s WebLog : More on .NET Framework 3.0 Naming…

Our “Orcas” release (likely to be called version 3.5) adds new features like LINQ which in turn requires new versions of the C# and VB compilers. But even with new compilers you don’t have to try and pick through a bunch of files to figure out how to make LINQ work. If you need the feature, simply deploy the “Orcas” bootstrapper and call it a day.

Orcasリリース時にはLINQのフィーチャーを含んだ形で、.NET Fx 3.5として登場するらしい。