I'm afraid I've never heard or come across a case or even an individual I know who has complained about eye strain with the iPhone 4s display. If anything peopl

I'm afraid I've never heard or come across a case or even an individual I know who has complained about eye strain with the iPhone 4s display. If anything people have been pretty happy with it and can't go back to a 3GS. I'm sure the same will happen with the second gen iPad if it indeed does get a higher res display.