> IMHO F# has the potential to be WAY more friendly for prototyping and more. It's all a matter of the libs.

Yeah, I've been dropping down to Visual Studio's F# console regularly to test things in a REPL-like environment.

Nowhere near the convenience of IPython though - I haven't come across anything way to import assemblies other than "#r /some/path/to/assembly.dll", which requires me to manually navigate through my project directories to find the correct folder/assembly. A notebook environment inside VS would be fantastic, too - rather than having a single line terminal-style input.