Abstract: A custom application is for managing a library of games on a hand held mobile processing device. The custom application comprises: a link to a collection of formatted games on the hand held mobile processing device which constitute the library of games, each of the formatted games comprising coding understandable by the handheld mobile processing device to deploy at least one of the games; and an import/export module for trading at least one of the formatted games with multiple computers or other hand held mobile processing devices.