Maybe it's time for QC to build another smartphone. Add this feature as a more useful version of Siri. In fact, improve on the accessibility feature so that web pages can be easily read even from FB or Linked In. Have it easily read the Subject AND content of every email so we can all save our eyes, visual impairment or not. If you don't have vision issues and you've worked you entire career on a screen then you are just not old enough to know yet. Just wait, or don't wait and fix it now.
Just a suggestion. I used to work at QC and I have Apple products. I know intimately IMO where QC can add value, if they are willing to listen to a marketing voice.