I think this is absolute bull. Go back in history and look at every "this is the future of technology" type article/book and it's a complete joke. I think I still have a "Future TV" book from the 70's at home, which predicts what people's homes will look like in the year 2000. Of course everyone's wearing a silver one-piece jump suit with a diagonal stripe, and all TV's have a printer built in so that mom can press a button and have the recipe printed out when she's watching her cookery shows.
The fact is that people like to sit at desks and look at vertical screens. If I sit looking down at a tablet for any longer than 20 minutes I get a stiff neck. So people will still, by and large, have monitors like we do now for their extended computer sessions. But of course the prediction is that everything will be touch screen. Except that reaching over a desk to touch a screen is a pain in the arse when you can just move a pointer around with a mouse, with far more accuracy and finesse.
The future popularity of tablets will be curtailed by several inescapable physical facts:
1) People prefer to look straight ahead rather than up or down
2) People prefer a little distance between eye and screen, which means text can only be so small, etc.
3) Most everyone prefers typing on a real keyboard to a touch screen
4) Fingers are a certain size, which means all-touch software will be constrained by the necessity of having to keep icons and buttons over a certain size, which coupled with the fact that tablet screens are much smaller, means tablet software will always be limited when compared to desktop software
5) Photography is a major part of everyone's lives now. Any kind of visual/design activities are better on a larger screen
I wouldn't mind if they just said that tablets are going to become more and more popular as alternative devices. Or even that there will be a considerable number of people who ditch computers for them. But 90%....it just seems like such a ridiculous figure. Not buying it at all.