I didn't know this, apparently you can run Plan9 on black hardware with a little bit of work.
http://www.fywss.com/plan9/info/next.htmlold page though. You might not be able to do this with the latest incarnations of plan9. Thought it was interesting :) Plan9 is a really neat operating system. I've only messed with it a little bit.
I had a link saved of what appears to be a mirror page.
http://www.ecf.toronto.edu/plan9/info/next.htmlThat might be interesting to try out. Looks like it supports netbooting too.