It seems to be a good product. However, there is a logical gap in product offering. It looks it is a technology product for the sake of technology and not for the sake of solving the battery life problem. The logic is simple - If one has to carry a gizmo with a mobile phone, one might carry a spare battery. A battery will allow uninterrupted power supply without having to have another phone.
A real breakthrough will happen when someone develops a product that can transmit power from a remote location!