Kind of tangential, but I'm really saddened by Id not releasing the source code to their engines since Doom 3 BFG-ish. I know he doesn't work there anymore, but I got reminded earlier today when Linus (of techtips fame) lamented the fact that there's only a single game that runs on the fantastic Id tech 7 engine.

At least Demonware will get direct unlicensed access to their netcode when Microsoft finally buys them.