London designer Patrick Hyland has come up with a rather zany conceptual handset, borrowing the Nokia name for his design. What makes the Nokia E-Cu (E is for environment, while Cu stands for Copper) so special, you ask? Well, it can be juiced thanks to available heat in your pocket. This is made possible since an integrated thermogenerator will convert heat from any source into electrical energy in order to juice up the handset, regardless of whether it resides in your pocket or is placed on top of a radiator. Does this mean we can now toast our phones over the fireplace while sipping on hot chocolate and munching on marshmallows?