Tech Report has a story about AMD's plans for some of its older Athlon CPUs. Athlon 64 X2 4800+, 4400+, and 4000+ for Socket AM2 and model 4400+ for Socket 939 chips will be retired soon, as will 4000+, 3700+, 3200+, and 3000+ single core chips. Several Sempron CPUs will be discontinued as well.