Uh, why are you now talking about OS X? We agreed that Mac OS X was a offspring of BSD.
Funny how OS X gets the actual UNIX branding and BSD doesn't, even though Mac OS X Leopard is based on BSD. Darwin is based on FreeBSD, and Mac OS X is built upon Darwin. Watch a couple Apple Keynotes which explain the core operation of Mac OS X. BSD dev's also worked on FreeBSD as well. Follow the chain, it's not hard.
Also, read the definition of UNIX-like. You obviously missed that part.
You cannot ignore the fact that BSD, Linux and FreeBSD (written by some of the BSD devs) are all labeled as UNIX-like, and that by the very definition I found and sourced you too are all related to each other by function. Which is what I have been arguing all along. I doubt you caught any of it.
You're trying to use small, semantic methods to get out of being wrong, and it's not working. Face the evidence, the definitions, the labels, etc to which I have provided and maybe you will understand. I have a feeling you once again skimmed my post to merely pick out parts you deem incorrect and not address any of the facts I provided. This method of debate doesn't make you right, it makes you look like an idiot. I don't personally think you are an idiot, I just think you like to ignore important points and focus instead on insignificant differences which have no bearing on the topic at hand.
Oh wait, you argue for FE theory, why am I not surprised? When you accept the fact that I argued correctly the definition of what UNIX-like implies (and then later proved my claim which you ignored), then you will have gained some respect from me. But until then, I consider you to be a script kiddie, and that's obvious for the reasons I have explained.