Too little? Biggest change for ASP.NET from release of ASP.NET!
"Too much of pain" was the first (and last) thing I said when trying to configure ruby on ubuntu. Or tried to download some app and run it.
Flying cars would be pretty huge even though planes have already been flying for a while...
The catch here (and point) is why should you have to switch from VS at all? If it's a real source code editor shouldn't it handle Java, Clojure, Haskell, Python, Ruby, JavaScript, etc all just fine? Some of the oldest and free editors do and do it well. I realize MS has an agenda (perhaps) or they've de-prioritized any of these features into oblivion -- but who are they serving, I certainly didn't feel it was me even after giving them a lot of $ for VS.
http://nodejstools.codeplex.com/
They have others but you get the idea.