You obviously have no idea what you are talking about. I'm head IT manager so let's use my company as an example. I checked when our bosses wanted to get a mac for media editing (which is comical by itself). It works with exactly zero of our software suites. ZERO. No CRM, no office, no database apps, nothing. In fact, Firefox and Safari don't work with our ASP software either. Macs are toys for clueless rich people and have no place whatsoever in a professional environment. Forget compatibility, just go with cost. It's an idiotic choice.
"Doesn't work in my environment" != "in any professional environment."
What's an idiotic choice for your narrow section of the world doesn't make it an idiotic choice for everyone. And so long as Apple keeps with their separate plan for what is a desktop OS and what is a mobile OS, I think they'll be on track to displace a number of traditional workplace PCs. Meanwhile, Microsoft's garbled inconsistent half hybrid will becoming increasingly insignificant.