Smells like teen spirit.
Hm... In fact, I have a good friend. She works for a company who specializes in Java programming. She's used to Windows at home and works on a Sun Workstation at work. When I told her that Mac OS X is in fact a UN*X derivate, she started drooling again. In fact, she bought the iBook (Combo, 12") only because there was OS X. And she didn't really know about it before I showed it to her, although she had had experience with Mac OS 8 from school.
Now she's a Microsoft hater and UN*X lover like she was before, but she's also an Apple fan. She would never touch Mac OS 9, though, which is understandable, seeing where she's coming from.
Those stories *are* true, Apple asked for them a while ago (two months?). They may have edited spelling errors, thus the 'UNIX' you seem to find strange. (Well, it is not, as even
http://www.bsd.org does it in upper case.)
But I must say, again, that I don't like the ad campaign at all. It's not aimed at Mac users, of course, which is also a good thing. But I don't think that 'die-hard UNIX geeks' will drool over these ads. Those guys, and I know some of them, drool over very, very different stuff. You'd have to show them that you can dig deep into the system, which is not suited for TV spots. Easiest: Show them the cool hardware (the TiBook, the PowerMac, the Xserve), tell them they're cheaper than your average Sun/sgi/whatever workstation and make it very clear that Mac OS X is a first class citizen in a UNIX/mixed/Java/whatever environment.
I think Apple has lost much of its style momentum with the new ads.