If it is now easier and quicker to do an internal cavity x-ray, I'm afraid that there will be many more internal cavity x-rays.
In addition to my bifocals, I also have a pair of "computer" glasses. These have a single prescription focused slightly farther than reading glasses. When working on a computer with two monitors, these allow me to just move my eyes to look at different parts of the screen. With bifocals, I have to move my entire head, which is highly annoying.
If the emPower! glasses could change the whole lens, I could manually turn them on and work on the computer with my head up. When not on the computer, I could turn them off and let the accelerometer select far/near focus based on my head being up/down.
Being ignorant of texting and choosing not to use texting are two very different things.
I personally believe that most adults are far too busy (unfortunately), for the mindless chatter that makes up a large porting of texting. Those adults who need to use texting, simply use it less than teenagers. Those who don't need it, use another form of communications: voice, email, IM, etc.
or use email, if async comms is desired?
Maybe Apple should ban the phone application in the iPhone since users are currently able to communicate bad words.