Apparently everyone who knows much about the AMD stuff has been run off tomshardware. So, I'll spell a few things out for those we might actually care. First off, there will be a quad core K8. This is a natively quad core chip, based off of the current style cpu, although it will also contain any revisions they have made up to that point. Second, 4x4 is a DUAL SOCKET setup, designed to use EITHER dual core chips or Quad Core chips so far as current data suggests. Furthermore, the K8L design will be available in at least dual core and quad core, and is set to work in AM2, AM3, and socket 1207 systems, depending on the specific chip. Tri-Core chips will arrive eventually, but they will depend very much on how the quad cores yield. IBM's Cell was designed for 8 "mini-cores" originally. However, the PS3 only needs 7, and yields of 8 were not good, so a higher percentage is utilized when fewer cores are necessary. This is similiar to what is going on with Conroe now. You can buy a dual-core, but the single cores are not out because the it's easier to jump from 1 to 2 cores than from 2 to 4 core designs. It's more cost effective to sell as much silicon as possible at whatever core, than scrap the cpu's that don't have 4 working cores.