The Scalable Computing Laboratory has posted instructions on how to get Xen running on a Intel Mac mini. Xen is an open source virtualization system that lets multiple guest operating systems run on the same processor. The Mac mini is small, relatively inexpensive, and because it supports VT instructions you can run WindowsXP without modification. This makes the mini a really good choice for a hardware virtualization box. The install does have some quirks. You need a distro that uses lilo to boot because of Mac mini’s lack of an A20 gate. Once installed you switch to a patched version of grub because that’s what Xen requires.
[thanks steve, the good steve]
