Since I've returned from Korea, there's actually been a new Compendium IRC server up and running, but I haven't done anything with it yet. Instead, I'm working on some other projects.
If there's enough interest, I'll put the information up here, but be warned, there's no services or anything set up yet. As such, anyone can pretend to be anyone and do whatever they want without any ops or admins getting in the way.
EDIT: What the hell. Here:
http://chat.chronocompendium.com/If you want to use your own client, the server is either chat.chronocompendium.com or irc.chronocompendium.com. Both point to the same place.