Windows XP (Whistler) won't boot from disks with MBR partition tables, requiring a new GUID Partition Table (GPT). It will still read and write MBR disks. In a cursory search, I find no work to support GPT with LILO or other multi-booting Linux loaders. I'm a 'one OS, one disk' man, especially since disks are so cheap, but what about those who aren't handy with a screwdriver (and an IDE cable)? An easily installable Linux distro that shrinks the Windows partition, but allows multi-booting without requiring a re-install of Windows is a great Trojan horse: 'here, try this real OS, but if you don't like it, or you need a particular app, you can always boot Windows.' Will GPT make this harder?"
What reasoning was behind the move to GPT? By making Whistler incompatible with the standard MBR, this could be seen by many as another move to stifle competition in the PC market. How do you feel about it?