The ruby extension is good enough. Debugger works, syntax highlight works, many linter works. There's an extension for erb highlighting. A couple weeks ago Matz

The ruby extension is good enough. Debugger works, syntax highlight works, many linter works. There's an extension for erb highlighting. A couple weeks ago Matz himself added rcodetools for autocompletion. I contribute a couple of lines and 2 extensions for haml and rspec snippets. There's still more things to do and bugs in the extensions, but it's kinda ok.