Does not work on a Thinkpad T410 on Arch Linux.<p>With Chrome I can see the marble but it doesn't move, with Firefox 4 nightly I can't even see the marble.
``Sorry, this experiment only works in Chrome.'' -- feels like 1990's all over again.<p>Of course it's not <i>that</i> bad -- it uses cutting-edge features and those may find their way into competing browsers in a few months. So there is progress :-)