Is it a wallet, is it a shoe, NO, a phone! Charting the future of cell phone technology, Kyocera recently unveiled a kinetic energy-powered phone.

The phone is is capable of folding up like a wallet. Designed by industrial designer Susan McKinney, the EOS phone consists of a soft, semi-rigid polymer skin surrounding a flexible low-energy OLED display. Shape memory allows the phone’s keys to pop up when in use and blend in with the surface during downtime.

Although the EOS is still in the early design stage, the Kyocera EOS can be used in its folded-up shape for simple phone calls, unfolds to reveal a wide screen, and we were excited to hear that the it derives its energy from human interaction. The more you use the phone, the more kinetic energy is turned into an electric charge through an array of tiny piezoelectric generators. In other words, you’ll never have to worry about leaving the house with a semi-charged cell phone again.

[via EngadgetMobile]