[cmpb]

Yes, but I've found it to be lacking usability-wise (e.g. it doesn't load the current project's dependencies, and it doesn't provide an easy way to load in dependencies from your project [someone please correct me if I'm wrong!]).

[daigoba66]

That's what Update 2 brings: "You can now initialize the C# Interactive Window with a project's context, allowing immediate access to types inside that project."

[cmpb]

That is great news, thanks!