XP has a meaning I didnt see mentioned yet. It's the original monogram of Jesus Christ. XP, the greek letters chi ro are found throughout early Christian artwork and in the stain glass work in most of the worlds larger cathedrals. This sort of brings up an interesting half-alseep observation. If you flip XP over 180 degrees you get dx which is microsoftese for Direct X which only furthers my theory that bill gates think's he's someone he's not.