LOL Wired you did it again. The thing your article does not say is that Gartner's report does not count Apple Mac sales as PCs, so actually as a whole the market is pretty much the same size as last year.
And yes, Apple Macs are PCs : they have the same internals, while they ship with a different OS - and as far as I know you don't discount Dells shipping with Linux either.
That "they have the same internals" doesn't qualify them as PC's; it's the fact that they are Personal Computers. They were Personal Computers when the were PowerPC based and they were Personal Computers when they ran Motorola 68000 processors. In this case though, you are entirely wrong.
"Of all PC makers listed, only Apple saw year-over-year growth..."
And yes, Apple Macs are PCs : they have the same internals, while they ship with a different OS - and as far as I know you don't discount Dells shipping with Linux either.
Seriously journalists, do your JOB.