From DaTa Software:
Anti-Theft is an innovative lost and found anti-theft software program that sends the thief's mobile contact number to pre-defined mobile phone number(s) when your mobile phone is lost or stolen. Install the software program into your mobile and the program works quietly in the device by automatically checking on the Subscriber Identity Module (SIM) card, all without the knowledge of the unauthorized user. It will secretly send out customizable SMS(s) using the thief's SIM card number to alert the pre-defined mobile phone number back to the owner. If you chose to, you could also send customized messages to the thief and lock the phone completely, even after its stolen, remotely through an SMS. Install it now before you lose your mobile.