An Arduino is equipped with a piezo sensor to detect impact, and a GSM shield takes care of the texting. It’s an interesting concept, similar to requiring police officers to wear body cameras.

Now that tinkering has finally come to fruition with [Phang]’s TraLog shield, a single Arduino shield that combines GPS tracking with a GSM and GPRS transceiver.

Real Time Home Security System using GSM Technology-An Anti-theft System! This project deals with the design & development of a theft control system for home, which is being used to prevent/control ...

David Mellis has created his very own cellphone using an Arduino GSM shield, as with any phone, on the Arduino GSM Shield cellphone allow you to store numbers ...

The GSM Shield also includes a Telefonica SIM card that includes a worldwide data tariff which can be used anywhere there is a cellular signal. Features include the ability to have the Arduino ...

PS3 Burglary "Honeypot" Powered by Arduino, GPS, Wireless Modem Over at DSS Circuits, Wayne Truchsess has posted a great article about a “Honeypot” he built inside an empty PS3 case.