Wireless Power: Phone Recharges Using Radio Waves

Nokia has shown a prototype of a cell phone that uses ambient radio waves in the air to recharge its batteries. This “wireless power” harvets electromagnetic energy from TV, radio, or even other mobile phone systems and creates a small amount of electrical current (5 milliwatts), enough to slowly recharge the cell phone battery while it’s in standby mode.

OK, this is not recent news [June 2009], but I just read it and thought it’s just brilliant! I guess there should be no reason why this technology, once perfected, could not be used to [slowly] recharge a digital camera’s battery.