Having owned a PC in the past...and now because I am completely spoiled with amazing software (and yes, some of it free or donationware), the Mac development community sure does care about making good products. My opinion, sure, but I've experienced the other side as well...
I know SO MANY PEOPLE right now who are switching and/or buying new Macs. I've never seen anything like it. Business people, companies, programmers, students, parents, etc...
Anyways, back to Vista, I feel kind of sorry for MS because Vista is really taking alot of crap in tech blogs, in press and in public. But, they created this mess with their poor approach to dealing with the people who use their products. I doubt Vista will be as bad as people say it will be...but I also believe that MS is still not taking a real step into the future as they should be doing.
In the recent MS accounting there was a hole of $2.4 billion that nobody can or wants to explain...it will be interesting to see what this is all about.