In a previous post I mentioned a funky character encoding issue with my Emacs Autotest output. I finally looked into the cause and came across the solution. I just needed to enable ansi-colors in my Emacs shell.
In your .emacs file, add the following:
;; Add color to a shell running in emacs 'M-x shell' (autoload 'ansi-color-for-comint-mode-on "ansi-color" nil t) (add-hook 'shell-mode-hook 'ansi-color-for-comint-mode-on)
Cheap and easy. Now, you’ll get all the cool ansi colors, like the kids.

Not really related to this post, but when will the beta version of your new book be available? Can’t wait to read it.
Matt,
At this time, Apress does not really have a “beta” books program. I certainly wish that they did, look for the book to be published sometime in late spring of 2008. Also, keep checking back here for some content on Scaling Rails. I’m going to try to introduce some of the concepts in the book here.