Mists of Pandaria™ Beta Author guilds
The guilds are set up on US (Lost Isles) and EU (Mekkatorque). Same guild names for both realms:
Alliance ==
Players vs AddOns
Horde ==
AddOns vs Players
Hop into IRC to arrange guild invites (or charter signatures):
irc://irc.freenode.net/WoWUIDev