<p>Is there anyone out there using iPython with emacs 23? The documents on the emacs wiki are a bit of a muddle and I would be interested in hearing from anyone using emacs for Python development. Do you use the download python-mode and ipython.el? What do you recommend?</p>

never used it myself, but I do follow the ipython mailing list, and there was a
thread
a couple months back.
maybe this will help
http://lists.ipython.scipy.org/pipermail/ipython-user/2008-September/005791.html
It's also a very responsive mailing list if you run into trouble.