Rumour has it that the next iPhone is on the way, and it will have two LCD screens - a regular one on the front, and a touch-screen on the back! The primary reason for the back screen, as explained in Apple's recent patent application, is that front screens are commonly too small to be easily controlled by our grubby little mitts (although Apple politely use the word 'finger', of course). Apparently, 'display smudging' is a common problem on ...