Senh: That's pretty much what happened. There are just more options now. You can do most of the stuff you used to on a desktop computer with a smartphone now, and it's much more portable. The article forgot to mention netbooks. Not everyone needs the power of a desktop computer unless you're playing video games or doing lots of video/graphics work.
Senh: It sure sounds like it. I have a desktop just because I don't want to get rid of it. I'm using my laptop all the time now. With laptops so cheap and portable, it doesn't make much sense to have a desktop unless you're into heavy-duty video editing, computer animation, or print design.