I signed up to run two slots of round-robin GM'ing. Essentially, everyone takes turns GMing the same game in a completely adhoc, adlibed game. It's fun.
And although I haven't heard back from the yet, I've volunteered to run some of the Goodman Games' Dungeon Crawl Classics tournament games.
I might be persuaded to run a game of HARP, too, if anyone is interested.