 <p>Eclipse has a VIM plugin. Eclipse runs on OS X</p> <p><a href="http://www.vimplugin.org/" rel="nofollow noreferrer">http://www.vimplugin.org/</a></p> <p>Also, I think the Komodo IDEs and editors have VIM bindings, but I have little experience with them. Apparently, they also run on OS X.</p> <p><a href="http://docs.activestate.com/komodo/4.4/vikeybind.html" rel="nofollow noreferrer">http://docs.activestate.com/komodo/4.4/vikeybind.html</a></p>