Read the comic here.
If I were playing "Six Degrees of Irregular Webcomic Creator David Morgan-Mar", I'd be just one person away. I'm friends with Sportswriter Dave Hogg, who apparently has known David since before Irregular Webcomic was created.
That said, I only became a fan of that comic a year or so ago - probably due to high levels of envy. And I've never spoken with (or even to) David before today. (I sent an email letting him know about the fan art/tribute/whatever nature of today's RC strip). So...NO...this isn't a crossover in the making.