Provided is a mobile satellite transceiver system for communicating with a Global Positioning System (GPS) satellite and a communications satellite. In on implementation, the mobile satellite transceiver system includes a GPS receiver configured to receive communications from the GPS satellite, a satellite modem configured to transmit and receive communications from the communications satellite, and an operating system. In some implementations, the operating system of the mobile satellite transceiver system is configured to send and receive text messages to/from the communications satellite via the satellite modem. In some implementations the mobile satellite transceiver system also includes a Radio Frequency Identification (RFID) interrogator for communicating with RFID tags.