Dal blog di Scott Guthrie...
[...] One of the big changes we are making starting with the VS 2008 release is to support what we call "Multi-Targeting" - which means that Visual Studio will now support targeting multiple versions of the .NET Framework, and developers will be able to start taking advantage of the new features Visual Studio provides without having to always upgrade their existing projects and deployed applications to use a new version of the .NET Framework library. [...]
Oserei dire che era ora...
...e che non vedo l'ora di metterci su le mani!!! ;-)