User blog comment:Ohmyn0/What's Going on with Chat/@comment-1142365-20110505181741/@comment-118323-20110506212526

This is an interesting idea. We made sure to allow users to log in to multiple chats at the same time, because we knew some people would be interested in running multiple chats at the same time. Beyond that, we won't be building any more features for cross-wiki chats until we hammer out the features for individual chats.