Pretty cool! You can see it in action here: <a href="http://www.youtube.com/watch?v=DkqtklABgGQ" rel="nofollow">http://www.youtube.com/watch?v=DkqtklABgGQ</a>
This is pretty interesting, but it's been done before:
<a href="http://www.boffswana.com/news/?p=392" rel="nofollow">http://www.boffswana.com/news/?p=392</a><p>Anyone else see find humor in having people waste paper in the name of Eco-Friendliness?