Well, maybe in the normal market there's not much of a demand for PCs but the enthusiast market is a completely different animal. The geeks, the hard core geeks, still want their PCs. And what do they want? SSDs.
Don't count the enthusiast market out. There's still a lot of people out there that feel that they'd have to have their PCs pried from their cold dead hands.
Myself, I have a smart phone (obviously) but I do have my PCs, two of them. A desktop and a notebook. If you ask me, contrary to popular belief, the PC isn't going anywhere!