We're actually thinking of doing some kind of closed public beta test to stress-test the multiplayer parts of the games, but haven't figured out yet exactly how we're going to approach it. Once we do, we'll be sure to let you know
I've seen some games use Steam for alpha/beta testing. I'm not sure what all you'd have to do as far as discussions with Valve, but I have seen it, so maybe that's a possibility? Plus, that adds the added protection of Steam keys and DRM.
