[ssalenik]

Both iOS and Android now have pretty good accessibility features for the blind. I think iOS is still slightly ahead though. Basically the phone reads out the button or action when you put your finger over it and you have to double tap to click. When you go to a new screen, it reads out the contents.

You can try it yourself if you have an iOS or Android phone by enabling the feature. But I've met blind people who use their touch screen smart phones every day.