Apple has just published Boot Camp, a utility to install Windows XP on a Mac. As I understand it, this provides an EFI module for legacy BIOS compatibility, a set of Windows drivers for the Apple hardware and the required tools to ease Windows' installation.

In other words: it lets you to flawlessly install Windows XP SP2 (be it the Home or Professional edition) in one of the new Intel-based Macs. Beta versions are now available for downloaded and the final version will be included in Mac OS X 10.5 Leopard.

Great, Apple. I do not have an excuse any more to not replace my desktop machine with a Macintosh. In fact, I'm dying to switch but I'll resist for some more time ;-)

Edit (April 7th, 20:57): Dirk Olbertz has installed Ubuntu on his iMac using Boot Camp (the link is in German). So this seems not to be restricted to Windows.