If you had trouble installing the Noflipqlo screensaver or simply didn't want to go through so many steps to install a screensaver, you can try QMLSaver. It's not exactly the same thing, but the animation is still pretty nice as you can see in the video below:
To install QMLSaver in Ubuntu 10.10 Maverick Meerkat (works on both Gnome and KDE), use the following commands:
sudo add-apt-repository ppa:prodoomman/qmlsaver sudo apt-get update sudo apt-get install libqt4-dev qmlsaver
Then go to System > Prefereces > Screensaver and you should find QMLSaver among the available options.