I have installed Ubuntu from a thumb drive and it was pretty smooth and 
easy.  I did it once because I had no CD drive on a netbook and wanted 
Ubuntu Netbook Remix, and another time on a laptop with a flakey CD drive. 
The thing is, I used Ubuntu on another machine to make the USB, but I want 
to tell a friend far away using only Windows how he can do this.  Do you 
know of good instructions on how to make the Ubuntu installation thumb 
drive from a Windows box?

By the way, a young guy with a BA in Math told me he wanted to be a 
scientist so I told him that step #1 was to get rid of Windows, use Ubuntu 
and start learning R, bash, emacs, and so on.  I think Python would be a 
good idea too, but he's working mostly on stats right now and we don't 
want to do everything at once.  Funny thing is he already was using 
OpenOffice, GIMP, Firefox/Tbird and a bunch of other free software under 
Windows, so he has no real Windows-dependency problem.  He's the guy who 
needs the thumb drive.

Mike