Empath, I happen to think iTunes (the client application) is a good program, and even if never used to buy something from the iTunes Music Store is worth a look. It takes care of cataloging audio files quite handily, has good internals, good interface, and works well. The availability of the Store with it's music and spoken books, and the smooth way it is integrated into the entire experience is a bonus.
I'm assuming that much of that 'experience' is available in the MS Windows version, too, and just like when the latest Photoshop or whatever came out, I was excited to let people know - no matter what their platform.
Heck, when I see warnings that something needs to be updated because of a security problem, I post a note here, too. That's not because it directly affects me (though it often will indirectly affect me when worms and viruses clog up the internet), it's because people I consider friends happen to use that 'other' software, and I want them warned and protected. /ubbthreads/images/graemlins/wink.gif
I don't divide my friends into groups based on the software they use, and only treat certain ones well (though some of them do seem to do that ... /ubbthreads/images/graemlins/grin.gif ).
The only difference in talking about iTunes rather than Photoshop, printers, browsers, scanners, drives, etc. is that it happens to be made by Apple. So? We talk about MSIE which is made by Microsoft ... No big deal, really. /ubbthreads/images/graemlins/smile.gif