Is there any progress at all on a chat module for OpenACS 4.x? I realize that lots of people hate it (based on this and other threads), but I have a client who is interested in moving from 3.x to 4.x, who absolutely must have the chat functionality. And regardless of what you (or I) might think of the existing chat module, this client is rather pleased with how it works, even though it's simple, limited, and inefficient.
I would be more than happy to help an effort already in progress -- for something original, or as a front end to either Jabber or IRC. If there isn't any such effort, then I may simply do a quick-and-dirty port of the 3.x chat module into 4.x.