Have you ever compared a 60 Hz monitor with a 144 Hz monitor? In my opinion they are poles apart. 144 Hz just looks a lot smoother than 60 Hz and I think it's more comfortable for the eye. As far as I know iPhone screens do have a fixed refresh rate of 60 Hz. Do you think there is any chance that Apple will increase the screen refresh rate? Of course there would be apps which take a lot of performance so they wouldn't run on 144 Hz. But there could be an option for developers to limit the frame rate to a specific value. I think on iOS itself 144 Hz would be really cool and Apple would be the first company with this technology on a smartphone (and tablet). What do you think?