Ok, but where is latest x86 Darwin for EFI? The point of this is that Darwin provided an important platform to work on OSx86 analysis last summer when this whole game got started. Apple certainly updated x86 Darwin for the new Macs, so where is it?

Once an EFI x86 Darwin is installed, OS X pieces can then be added to it to understand how they work. Moreover, x86 Darwin might actually require the same (or similiar) EFI firmware code that Apple is using in the new Core Duo Macs, which might been released as without it such an EFI x86 Darwin might be useless.

Apple have stated before that they were not going to develop Darwin for X86 in future versions after 10.4.3 so maybe this is why but I think it odd from a company adopting X86 hardware ?????

develop OpenDarwin you mean. Because Darwin is the Mac OS itself and it's already 10.4.4

Darwin will allow us to run XP soft right?

yes. using virtual pc

The source is posted is only PPC, and PPC Macs do not use EFI, AFAIK.

When did Apple release x86 Darwin 8.4 (10.4.4)?

http://www.opensource.apple.com/darw...ce/10.4.4.x86/

Doesn't Darwin have some code under licenses which require source release? BSD obviously doesn't (sorta), but I thought they had some other junk in there.

Darwin Source is up for 8.4 (OS X 10.4.4) and 8.5 (OS X 10.4.5).
http://www.opensource.apple.com/darwinsource/

It appears binaries are only released for new whole number versions (i.e. 6.0/7.0/8.0).

Has anyone tried compiling source changes up through Darwin 8.5?

The problem is the lack of kexts. They are no longer releaseing those. So I guess the are trying to put the genie back in the bottle.