ThinkSecret grabbed some information and pictures of an Intel-based Mac development kit. The system features a 3.6GHz Pentium 4 processor with 800MHz and 2MB L2 cache and 1GB RAM memory. According to Apple's System Profiler the graphics card is the Intel Graphics Media Accelerator 800.
Along with running Mac OS X, Windows XP installs without hitch on the Intel-based Mac, just as it would on any other PC, and booted without issue when installed on an NTFS-formatted partition. The only misbehavior sources encountered involved the video card. Initially, Windows refused to budge from an 800x600 setting on a 23-inch Cinema Display. Some prodding managed to get the screen to 1600x1200, but sources were unable to get Windows to take advantage of the entire screen.
They also tried to install Mac OS X on non-Apple hardware like a Dell and off-brand PC. But the test was terminated quickly as they received a 'not supported by Darwin X86' error.
It is believed that Apple will prevent the installation of Mac OS X on non-Mac hardware by utilizing EDID chips. More detailed information about the Intel-based Mac development kit and photos can be found at ThinkSecret