Very nice list.

You forgot PHLAK (Proffesional hackers Linux Assault Kit)

www.phlak.org

and LSD.

http://members.tripod.com/~ladsoft/frindx.htm?pmode.htm

and the Contiki OS

http://dunkels.com/adam/contiki/download.html

also Oberon

http://www.oberon.ethz.ch/native/

and Mobius

http://www.themoebius.org.uk/download.html

and OpenNA Linux

http://www.openna.com/downloads/downloads.php

thats it i guess