The key advances appear to be the following:
- Support for 64-bit guest operating systems
- Experimental support for 2-way Virtual SMP
- New support for select host and guest operating systems and hardware - 32 and 64 bit
I am excited to see support for SMP (even if only for 2 processors) appear in a Workstation product. We are going to see more multi-core systems appearing in everyday desktops (even though most "normal" users should be using thin clients). :) 64-bit support is also welcome as that architecture moves out of the server world and onto developer desktops.