I just stumbled upon this from the Wikipedia page on QEMU, it’s a combination of Qemu-Saver for Windows and GamesKnoppix to provide a LiveDVD screensaver. Cool stuff.
this time with a bonus. A screensaver based on QEMU; leave your Windows box alone for a couple of minutes and it virtual-boots Linux, all the way to ‘xsnow’.
I still don’t have one…