Learn some basic hacking in (insert functional language here). I'm not trying to start a programming language flame war.

The point of the statement is to do just enough so that you don't drive away potential technical cofounders. Basically make yourself more attractive as a cofounder by avoiding the traps that many other non-technical cofounders fall into.

Oops, my bad then. I thought you had a reason to recommend Ruby.

Learn some basic hacking in (insert a programming language (that's not VB) here, whatever the paradigm). :-)