The maintainer decided to support Ubuntu and withdraws emacs support
from Debian
http://lists.debian.org/debian-emacsen/2007/03/msg00012.html
However the maintainer keeps a Debian track alive.
http://lists.debian.org/debian-emacsen/2007/04/msg00002.html
See this page for the latest version of emacs available for Debian.
http://emacs.orebokech.com/
Summary:
deb http://emacs.orebokech.com sid main deb-src http://emacs.orebokech.com sid main deb http://emacs.orebokech.com sarge main deb-src http://emacs.orebokech.com sarge main