There are provided a system, a method and a computer program product for controlling one or more media files in a mobile device. The system predicts a future usage of the media files. The system ranks each media file according to a likelihood that the each media file is processed at a time and a location associated with the predicted future usages. The system preemptively downloads the media files to a local data storage device of the mobile device, according to the ranking. There are also provided a system, a method and a computer program product for using one or more networks for a mobile device. The mobile device downloads an amount of data while the mobile device is connected to the first pre-determined wireless network. The mobile device configures certain applications in the mobile device to use the second pre-determined wireless network.