This Led cellphone concept from Tao Mao seems to be one of the most simplest but cutest cellphones, in Apple’s style. While it doesn’t have advanced functions, using LED for literally everything, not only for design or back-lightnin, as other cellphones. Also, it doesn’t quite feature a display, because everything it needs to indicate it’s done by LED, but it features contacts, calling, SMS and even games.
It’s keypad is touch sensitive and it’s only powered by two AAA batteries. One great function of it is that it’s batteries recharge if plugged into a PC using the USB interface. The cellphone comes with a cute dock, that indicates battery, also with LEDs.