I've been following the progress on trying to run Mac OS X on a regular x86 by some people. It's been really interesting to see how far they have come. Now they have stumbled on the following according to a post on their forum: We found out that the Rosetta kernel uses TCPA/TPM DRM. Currently their are no ways known to get the GUI working on non-Apple hardware, with this protected kernel. Even with a SSE3 enabled cpu you will never get the GUI. Read more about TCPA here: http://www.againsttcpa.com/tcpa-faq-en.html Apple really made sure that it won't be easy to run OS X on non Apple hardware, not even the transition box version. Btw, what they mean with the Rosetta kernel is the kernel that is installed on the transition boxes. It is different from the darwin kernel, as it integrates support for rosetta. Hope this hasn't been posted before.