
Like most devices with a processor running at more than 12MHz, the Intel Mac now boots Linux. It appears that the hero is Edgar Hucek (gimli), also a developer on the xbox-linux project.
According to the project
wiki,
the port required modification to the elilo bootloader, the Linux kernel and several drivers.
Hucek was able to get around the whole we-have-no-bios-but-we-have-EFI problem and boot off a USB hard disk, and use the keyboard and a USB network card. Gentoo runs and can compile the Linux kernel. A lot more work is due, but this is a big step. There can be little doubt that other developers will step in now and end up creating full Linux distributions for the Intel Mac.
Until more information becomes available, I leave you with the first two lines of the dmesg:
Linux version 2.6.16-rc3 (root@t43) (gcc version 4.0.2 (Gentoo 4.0.2-r3, pie-8.7.8)) #135 SMP Thu Feb 16 14:03:20 CET 2006
EFI: EFI v0.00 by Apple
Cool, eh?