I thought VMWare already did that (Score 5, Informative)

I have an Athlon64 but run a 32 bit OS. I tried running a 64 bit virtual machine using VMWare Server 1.0.x a year or so ago and it worked. The performance was not noticeably poor.

So... assuming I haven't missed anything too obvious, my response would be "No, vmware is not getting a run for their money." Not today anyways.