WinTel is just Bochs. Unless they have integrated another open-source virtual machine into the app (and not mentioned it anywhere on the web site), I would be extremely skeptical of their performance claims. Bochs is an x86 emulator, and AFAIK it doesn't seem to do a Classic-type virtual machine. It is also
extremely slow.
Of course, they still claim Bochs' performance is similar to that of VPC. I don't think these OpenOSX people are very honest.
