Royal Pingdom blog has posted with a comparison of home page load times and uptimes and concludes that various Linux distributions and Apple, both beat Microsoft’s record.

13/16 Linux distributions (and Apple) had less downtime than Microsoft’s homepage.

5/16 Linux distributions had less downtime than Apple’s homepage. Four homepages had NO downtime: Red Hat, Mepis, Knoppix and Fedora. Five homepages had more than an hour of downtime: Gentoo, Mandriva, Mint, Arch and Microsoft.