The Atari Memory Test screensaver add-on for BeOS simulates part of the self-tests that the old Atari 8-bit XL/XE computers had. Very simple, I made it as a joke :)
2002.05.30 - I had finished off version 1.0 awhile back (late March), forgot to post it here. Including source code too, it's cleaned up and somewhat presentable :)
2001.12.12 - I made this in an evening, took longer than it should have because of a silly rounding error that I spent too much time hunting down... Just used the skeleton from the Kablooie screensaver to start with, so all I had to focus on was getting the display to look right.
I know it's not a very useful or attractive screensaver (in fact, it would probably burn your screen more than save it, since it displays a static image in bright white), but I thought it was funny...