"EFiX is the best solution for installing and using Mac OS X on your PC. It allows its user to install Mac OS X straight from the original DVD without having to worry about patches, replacing files and anything like that. That means you can buy a regular PC, Mac OS X and EFiX and enjoy what the Mac users have always enjoyed: unmodified Mac OS X on your computer, safe, easy and fast, exactly the way it should be.
EFiX is in the final testing phase. All the testing has went far better than what we expected and the testers have given positive feedback. We have planned to release it on 23rd of June, 2008. More information will be added soon."
From sites that got to test it, it's basically some kind of USB hardware (is it just some kind of software booted from USB or something else?) that allows you to run OS X 100% as stable as a retail Mac. If it's priced decently, I'll definitely pick it up for my XPS 720 desktop. I can't get any of the patched DVD releases to work (I've tried the latest version of iATKOS and Kalyway).