Where can I download the Darwin 12.2.0 source code? I'm wondering where I can download the source code of the kernel of Mac OS X Mountain Lion 10.8.2: Darwin 12.2.0.

I googled it, but its hard to find. And yes, I tried http://www.opensource.apple.com.
I found it. Actually, the Darwin kernel is named xnu. The complete kernel name, version included, for Mac OS X 10.8.2 is xnu-2050.18.24.

It can be downloaded here: http://www.opensource.apple.com/tarballs/xnu/xnu-2050.18.24.tar.gz.

Source code can be browsed online here: http://www.opensource.apple.com/source/xnu/xnu-2050.18.24/