Re: Great article
"Regarding screens, Microsoft's Surface line has the best screen aspect for reading A-series documents: its 3:2 display ratio (i.e., 1.5:1), is as near as dagnabbit the A-series 1.414 : 1 plus a tiny bit for a menu bar.
Hopefully, other manufacturers will follow suit: 16:9 is only good for movies."
That's the trouble with toys where it's assumed you'll only have one thing displayed, it will be A-seriesish in proportion & it will be at full screen. Have you considered that other people have use cases involving multiple documents open at once, perhaps a reference document and a text editor? Or involving images which are much wider than the sort of text you use? In those situations 16:9 is minimal.