I have nabbed the work from:

http://www.batbox.org/wrt54g-linux.html

Making a few significant changes.  I've ported a much newer and more secure
dropbear for ssh and made the client work.  I've made the busybox have more
options that I wanted and removed any clashes with the builtin one so there is
more free space on the ramdisk, added a wake-on-lan binary, I've also added
crap socks4 support to netcat for reasons I'll go in to later.

I'll upload my work when I've tidied it up and had time for some docs.