On Aug 21, 2004, at 9:28 AM, sigsegv@rambler.ru wrote:

> I don't know much about the history of Mac OS X, but I've read it was 
> based on open source BSD, tell me if I am wrong, but didn't they take 
> a free BSD, polished it, added pretty GUIs and packaged it as Mac OS 
> X? Mac OS X could be made up of 90% of open  sorce software! :-)
>

Yes.  Exactly why I choose to use it.  Though it's probably more than 
10% non-open source.