There is a great article over at The Register titled Start-up could kick Opteron into overdrive. I must say this looks like very good news for 64-bit multicore server folks. What will be really interesting is if these could be virtualized in the same way so that you can gain benefit from them from multiple OS configurations.
I have to admit that AMD has a much more compelling story about 64-bit and multicore then Intel for the moment. Soon there will be dual core 64-bit mobile processors from AMD and then it might be time to buy a new laptop.