The problem with that is it defeats the reason I use an SE. I imagine some people use it because they want a physically smaller device, but I use it because I use my phone one handed almost all the time. Keeping the same size but making the screen portion larger kind of defeats the purpose for me (I think the iPhone 4 was the perfect size, but I can't have everything.) If they want to go edge to edge, ok, but sharing the device to the current screen size.

(I also worry about accidental touch rejection on an edge to edge screen. My AppleTV 4 remote is the most useless apple product since the hockey puck mouse of 1998 because the touch pad was registering input when I just picked up the remote. Now I use my AppleTV 3 remote with the 4.)

How would you make a phone call?

They have patents for screens full of holes that should allow a speaker and microphone to work through the screen:

http://www.theverge.com/2017/1/10/14225872/apple-patent-oled...

There is another patent regarding the TouchID sensor working through a screen:

http://appleinsider.com/articles/16/10/04/apple-patents-fing...

The front facing camera is a bigger issue.

With the right sort of directionality you might be able to get away with having the speaker on the top side and the mic on the bottom, leaving the whole front panel for the screen.

Or be super cool and have a mechanical system that pops out a little speaker at the top and a little mic at the bottom.

Maybe it's just my generation but me and pretty much all of my friends have not made a POTS phone call in at least many years traditionally; none of us know our phone numbers nor use them day to day.

If I end up actually calling someone (and pretty much everyone I know despises this and will do anything possible to avoid it) it's usually by tapping their number on a web page or in an app like yelp.

Bluetooth headset. Wired headset. 'Hey Siri' voice control. Apple Watch with headset.

Why would it stop you making a phonecall?