This isn't the first time we have seen a cellphone charger that is powered by kinetic energy, but the difference is that M2E is working on a charger that can produce 300 to 700% more juice than current technologies. They hope this will translate into a full-on replacement for cellphone batteries somewhere down the line. According to earth2tech, M2E's short term goal is to develop a charger that will produce an hour of talk time for around six hours of normal movement. Currently, M2E is in talks with major accessories manufacturers about bringing a device to market as early as 2009. [earth2tech via Inhabitat]