Sounds more fun than NACHOS, which is what my OS course was taught with: <a href="http://www.cs.washington.edu/homes/tom/nachos/" rel="nofollow">http://www.cs.washington.edu/homes/tom/nachos/</a>
<a href="http://www.unununium.org/" rel="nofollow">http://www.unununium.org/</a> was an earlier attempt at this, and I think it was even self-hosting, but the site no longer even hosts their source code.