Take a look at the image I posted and tell me how the 16:9 shows more.
Because you have made the classic error.
You think that to make a 4:3 screen into a 16:9 screen you remove the width to change the aspect ration. making it narrower/smaller.
Whereas you can think of it exactly the opposite, leave the width exactly as it s and ADD to the length.
Just as apple did with the iPhone.
You don't think the new iPhone screen is smaller than the last iPhone screen do you as they changed the aspect ration?
No, you and everyone can see it's BIGGER as they make it longer.
Which is why I say, and people here can't grasp. 16:9 is Bigger, not smaller.
You ADD length/mode screen real estate to the current screen.
Allowing more to be displayed on the screen.
Absolutely ideal in portrait mode, as you have move of a web page on screen and when you call up the on screen keyboard, in say pages, or another program, do can have the keyboard at the bottom without losing so much screen above it.
It's been proven time and time and time again when people have done forum poll that most people use these devices in Landscape mode most of the time.
We all know that wider would in the future give the ability to display 2 apps (a little like the Msoft surface does) so you do not have to exit email to look at the web page and then exit the web page to go back to the email, as an example.
16:10 would probably be the best compromise.
Better for gaming, better for movies, better for productivity apps, better for future multitasking, and in portrait mode, more web page on display and more document space above the virtual keyboard.
It's really win win win.