Slashdot has an article on: A Motherboard That Doesn't Require An OS
http://slashdot.org/article.pl?sid=04/03/08/2319215
When does a BIOS become an OS?... and all the usual humorous comments.
I guess you could do the same thing with LinuxBIOS if you just load Linux with all the drivers from your boot Flash and just say "it's all just BIOS and no OS".
-Bari