VMWare workstation Hyper-V support?

Hi,

On the Vmware Workstation comparison page

http://www.vmware.com/au/products/workstation/compare.html

It talks about Hyper-V Support.

Can somebody explain what this means. I was under the impression that you cannot use Hyper-V and VMWare workstation on the same machine?

I searched the documentation and could not find a reference (unless I missed something here).

Thanks,

Ward.