I've been playing with the Tricore EFI Framework. For giggles I even replaced the "Put logo here" splash screen with a black background and a white apple logo lol. The EFI Framework is way different then the Apple setup, it's more of a unix environment but of course it's a framework for development use for hardware drivers and extension applications such as a TCP/IP stack, file manager and so on.

Sadly there isn't a binary available so you have to use Windows and visual studio 2003 .net to compile it and run it in emulation.

As I said before the framework is for development use and can not be used as a BIOS replacement. However the more I play with it, it feels like the CoreBoot (LinuxBIOS) project.

Here are a couple of screen shots.
splash screen


shell

Very cool. Do you expect that you can learn anything here that will help the abandoned hackintosh folks that can no longer use 10.6.2?

Doubt it with just the frame work. If I had a ROM dump of a intel mac the tools of the trade I could figure out something. Really and truthfully if some one was smart enough they could build a EFI system to lay on top (IE load into RAM) kinda like OpenBIOS and use a chain loader to boot up OS X.

Besides with all of the hackers, programmers and technologists out in the world they will find a easy way to make 10.6.2 to run on normal PC hardware.