The basic idea is the same for all of them: subscribers get a fancy handset with a large colour screen and usually a built-in camera.

ECONOMIST: Not just talk? | The

Standard onboard features include the Audio 20 with a 14.7 cm colour screen, a twin tuner, an MP3-capable CD player and a USB connection.

ENGADGET: Mercedes-Benz introduces B-Class Electric Drive, we go eyes-on

Last May, Plastic Logic demonstrated a paper-like flexible screen capable of playing video in colour, which is achieved by placing a filter on top of the original black-and-white display.

BBC: Bend me, shape me: Flexible phones 'out by 2013'