Prey is a lightweight application that will help you track and find your laptop / android device if it ever gets stolen. It works in all operating systems and not only is it Open Source but also completely free.
View more information here: Track down your stolen laptop – Prey
Android specific information here: Prey arrives on mobiles: Android version available – Prey
View more information here: Track down your stolen laptop – Prey
Android specific information here: Prey arrives on mobiles: Android version available – Prey