Alas, this resource is not available to us Microsoft employees. Our
corporate policy prohibits the reading of open source code (that isn't
ours), because that avoids the possibility of introducing IP taint
into our
commercial products**.
Oh my.
We're limited to reading plain old documentation, so
if you have pointers to that, we'd appreciate it.
I keep Amit SIngh's tome on my reference shelf <http://osxbook.com/>.
AFAIK it has not been updated for 10.5.