With introduction of an iPhone, Apple opened our eyes to the possibilities of full screen touch interfaces. But such interfaces have one drawback - there’s a limit how small you can make it.
It would be difficult to put such an interface on iPod Nano - with your finger covering a better part of touchscreen, how would you operate it?
Don’t worry, Apple now has a solution. Why not make a full screen iPod or iPhone Nano, and put an operational touchpanel on the back side?
This way you can have a full screen of Next Gen iPod/iPhone Nano for viewing. When active touchpanel on the back side is activated, transparent device controls appear, depending on the mode the device is in - scroll wheel, song list for music, alphanumeric keypad for dialing, QWERTY softkeys for messages.