Android app - location tracker

We look to have an android app developed to be running on devices with location based services (GPS, A-GPS, wifi location etc.) Architecture outline as follows: * App to runs as service automatically after installation * No user interface needed * Service sends location data in string together with device IMEI and cell site info to via TCP/IP socket server where the incoming data will be parsed (parsing of incoming data not anymore part of the project) * Sending occurs in fixed intervals e.g. every 5 minutes. If no data connection at due interval, data are saved and sent when data connection becomes available * Service can parse incoming data string send by the socket server to change reporting interval and IP/Port for TCP socket connection Note: This is meant to be a prototype and if feasible more functions will be added