A. Intel Kernel Sources
As of today, we are posting buildable kernel sources for Intel-based Macs alongside the usual PowerPC (and other Intel) sources, starting with Mac OS X 10.4.7. We regret the delay in readying the new kernel for release, and thank you for your patience.
B. New “Mac OS Forge” for Community Projects
C. New Open Source Calendaring Server
D. Apache-Licensed Bonjour and Launchd sources
I had already given up hope they would release the kernel sources for Intel-based Macs. I hope Apple will spend some more effort on open source from now on.
the forum thread