Several news sources (including the Wall Street Journal and Reuters) have reported that the next iPhone will feature a 4-inch display, but what does that mean for the iOS experience?
9to5Mac says the 3.95" display will have a resolution of 1136x640, up from the iPhone 4S's 960x640. Those new pixels will reportedly make room for a fifth row of icons on the home screen, but they could also make trouble for developers who will have optimize their apps for the new phone's aspect ratio.
As far as the device's form factor, it's not expected to change. The dock connector, however, may shrink, making current sync cables obsolete.
The new iPhone is believed to be in testing right now, with Apple employees carrying it in a nondescript shell that hides the new design.