I'm curious why people as so quick to discount iOS and Android as "Not proper operating systems"... It has the feel of someone in the early 80's discounting microcomputers as not real computers...
The truth is, most people use their tablet/iPad/smart phone for almost all day to day computing tasks. The desktop is becoming as much a relic as mainframes and minicomputers have now become.
Want to know why?
Because at the 90's, with Internet, computers received a bunch of "appliance" users willing to play with it. Now, those users are moving away back to the Appliance world: Microwave, VHS Players, Blu-Ray Players, TIVO, Tablets,...
People who "work" with computers, would NOT move to a full-screen apps/touch only device.
Big Screen, Window Manager, Keyboard and Mouse are FASTER to work with.
And then, journalists who know computers just because of the Internet, keep pushing for "the death of PC" or "the post pc area"
The only bad news is that, without the proper volume, prices would sky high again, as they used to be at the beginning of the 90s.
Sooner or later, regular people will realize that...