We're (in no particular order) Chris Eidhof and Eelco Lempsink. You can reach us by mailing to <the name of the greatest editor> at slashpunt.org.
As avid Vim users we'd like to scratch an itch and contribute something. And looking at the number 3 and 4 from the requested features list we'd like to think we actually did something useful.
So we took a week off and started hacking (with just a grain of C knowlegde and no prior Mac programming experience) Vim...
...to implement the ODB Editor Suite and to make an InputManager to use it from regular text fields.