Nokia E-Cu by Patrick Hyland will charge automatically in your pocket

Charging mobile phone is just a headache. What if you get charged phone while in your pocket?
Nokia E-Cu concept by London designer Patrick Hyland, uses an integrated thermogenerator that converts heat into energy. So its will be automatically charging itself while in your pocket with body heat. It is surrounded by copper with engraved heatsinks in a dry earth pattern which represents the effect of heat on the natural environment. The phone can be charged by placing it on any source of heat e.g. a radiator, even inside a pocket.