I blogged about fullscreen emacs yesterday. I decided to put my integrated repository online until the upstream maintainers decide to integrate typester's code.
You can get the code here:
git clone http://git.poffenberger.org/emacs.git
$ ./configure --with-ns $ make && make install $ mv nextstep/Emacs.app /Applications/
As is usual in these cases, this code is covered by the terms of the GPL (see the license in the repository for the exact terms). Further, I make no personal guarantees about the code or the binary's fitness for any purpose. If it mulches your car don't call me! ;-)