Abstract: A personal server is provided for use with a mobile device, such as a cellular telephone. The personal server provides services to the user of the mobile device and to others authorized by the user, but to no other users. The personal server may be a home PC of the user of the mobile device. The personal server may serve as a proxy server for a shared server that provides services to the mobile device. The personal server may relay messages between the mobile device and the shared server. The personal server may store, log, filter, and perform other processing on the user's personal data, such as messages transmitted by the mobile device and/or the shared server. The personal server may aggregate messages received from a plurality of shared servers. A non-personal server may perform additional services, such as configuring the personal server and temporarily storing data if the personal server becomes inaccessible.