Re: Great article
16:9 panels were chosen for laptops because they were cheaper: the same 13" part could be used in a portable TV.
There's no evidence that they're better for reading text, whether side-by-side or one-up. The problem is that they lack height, and text is invariably written as tall pages of narrow columns. Look at how many websites (Reg included) pad out their layout left and right with the content in a narrow vertical column. There is a scientifically proven reason for this: it's to reduce the amount of horizontal tracking your eye needs to do between one line of text and another (similarly to how newspapers lay out text in narrow columns rather than long lines), so that you can read faster.
Wide displays don't offer any benefit for reading - even if you have two documents side-by-side, you will get to see more of them on a 3:2 or (better) a 4:3 display than you do with any of the widescreen displays. And that's before we look at how every GUI design peels precious vertical space away with toolbars/docks/menubars and window headers...
If there were laptops with 4:3 displays, I'd rave about them, but nobody makes them anymore. Surfaces seem to be the only range that has tried to move away from 16:9 and back towards the more work-friendly 4:3 ratio -- if there are others, I'd be delighted to hear about them.