Mac do Windows, too.

[Derek]

Boot Camp Public Beta

More and more people are buying and loving Macs. To make this choice simply irresistible, Apple will include technology in the next major release of Mac OS X, Leopard, that lets you install and run the Windows XP operating system on your Mac. Called Boot Camp (for now), you can download a public beta today.

http://www.apple.com/macosx/bootcamp/

[davd_bob]

Its also interesting that MS is setting up for more Linux support.