Obviously this will be upsetting to those who enjoy the extremely cheap power that the XP's provide, but they've, uhh, been around a while. Over three years, actually TR reviewed the Athlon XP 1800+ on October 9, 2001.
This leaves only the Sempron riding in Socket A, and with only 256KB of L2 and a 333MHz bus, the 'pron doesn't exactly fill out the socket the way the XP did. But hey, when an old tool breaks, you go buy a new one. In this case, I recommend a shiny new hammer.