If you use GVim on your mac then it should work fine.

If you use a different editor then it should be pretty easy to hack up a plugin that launches your preferred editor instead. The plugin API docs give an example of launching GNOME gedit: http://search.cpan.org/perldoc?App::BCVI::Plugins

Would be interesting to see a setup with textmate editing on the local workstation using this.

Symlinking gvim to mvim seems to make everything work perfectly.