I currently work in IT dept. for a large healthcare company. I have also worked either directly or consulted with many other companies. When you say “PC”, almost everyone knows your talking about a Windows computer.
Oh, I don't disagree that most people have the impression that "PC" and "Windows computer" are the same thing. And that unfortunate conflation was reinforced by Apple in their famous "I'm a Mac / I'm a PC" advertising campaign of a decade ago.
Those of us who have been working with PCs -- personal computers -- since the mid-1970's take a longer view. :-) The term "PC" was in use back then; it was generic.
"PC World" magazine got its start shortly after the IBM Model 5150 ("IBM-PC") was released, and covered CP/M-86, IBM BASIC, and others in addition to PC-DOS (MS-DOS). Windows, although released in 1985, didn't become a household name until the mid-1990's. And ironically, the term "PC" is finally becoming generic again after 30 years of being tied to the IBM-PC architecture.
In any case, and back to the topic of this thread, "PC World" isn't trashing anything by describing Windows Phone as having an "increasingly uncertain" future -- that's simply an appraisal of its current state and a prediction that it's unlikely to improve dramatically. I think that appraisal is unfortunate, but basically accurate... Do you disagree?