While 3.5" is good for dialing numbers it is way too small and outdated for surfing the web, watching video, and playing games. I am sure Apple can keep the dial app small enough to fit all hand sizes. But to stay relevant they have increase screen size to 4" ideally to 4.5" without changing the form factor. Basically they could make the entire case a big screen leaving short space for the camera and speaker. And no home button please.