Actually, there are two other chat client projects with great
progress.
The first is Morar Chat for Java, allowing it to run on Windows,
Linux, Mac. I have been alpha testing it for several weeks and it is
very stable; the author hopes to open beta testing very soon. It has
all the basic functions and added features will come after the open
beta proves the foundation to be stable.
MORARCHAT.COM
The other is ChatLinq for iPhone/Macintosh. It is in open beta now
and the author only asks that you definatly provide feedback for
trying the early release.
CHATLINQ.COM
I agree JG's Chat Client is dead.