Gentoo on a USB key:

http://www.encryptec.net/flashlinux/

I'm going to give this a try later. What's great I suppose, is that since you can actually write to the USB key, you can install software and save documents. It would seem that there is 50 mb free on a 256mb key after a fresh install.

You can keep the stuff up to date, no need to waste another CD, or download a whole ISO just to be up to date, because you can just use portage to update your stuff.

Hardware detection is done using Knoppix's 'autoconfig.'

You guys suck.

hehe, that's nice but i already have 475 gig of harddrive space to play with over here and soon will start expermenting with bootable dvdrom if possiable.