From Reuters:

Microsoft Corp. on Tuesday agreed to require only a single license for server software that runs on computers powered by a new generation of chips that squeeze multiple processors into a single package. [...] Microsoft said its server software that currently licenses on a per-processor basis will continue to be licensed that way.

This is a big win for the chip manufacturers and indeed the end users.  I guess MS woke up and realized that multicore processing is how we will see additional power in the years to come, so to their revenue model, it shouldn't look much different from the usual Moore's Law-ifying of server power.

- G