Derek's comparisons are interesting, and his technical observations from a programmer's standpoint make his comparisons worth reading. However, I sure wish he'd have compared the Tualatin and Athlon XP to a 2GHz Pentium 4, not a 1.5GHz one. Like we did, actually. The Tualatin seems nifty until you compare it to a really fast P4 system in multimedia, gaming, and the like. Still, Derek was stirring up trouble way back in my Atari ST and Amiga days, so I can't fault him too much.
(Speaking of Windows XP, it finally dawned on me that the name actually alludes to a fabled MS code name. Think Greek letters: XP = chi and rho. Back in the day, "Cairo" was gonna cure cancer and all sorts of things. Of course, then the Internet happened. I guess MS finally got Cairo out the door, eh?)