"Apple may be courting open-source developers with its
Unix-based Mac OS X, but it doesn't have all open-source gurus
convinced. Eric Raymond, the co-founder of the Open Source
Initiative, told ZDNet UK that he, for one, finds Apple's 'public
source' licence too restrictive.
"'I don't see a lot of point in putting development effort into
it,' Raymond said in a recent interview. 'I can work with a system
that's completely open, so why should I work with Apple's
"Apple makes Darwin, the core of OS X, available under its own
Apple Public Source Licence. Darwin is based on FreeBSD, an
open-source implementation of Unix, and Mach 3.0..."