IBM's non-Intel servers and mainframes run on the RISC Power4 chip, which use 1 GHz+ dual-processors. Just because IBM doesn't want to produce the G4 doesn't mean they don't want to find desktop/workstation use for the billions of dollars they threw into Power4 processor research ... could it be that there really is no G5 (Motorola says G5 is just for autos) and IBM is actually the sole source of the next gen PPC processors? It would make some sense ... IBM never gets in the G4 game and produces G3s only until the next generation PPC is ready to roll (perhaps 2H 02.) Motorola continues to produce G4s, but they make the transition from high-end to consumer models. This would support recent Motorola claims that there's a lot of life left in the G4. I'm a former IBM employee, but claim no insider knowledge of this, it's just speculation.