This software is the first Open Source system for tracking the location of your lost or stolen laptop that does not rely on a proprietary or a central service. Best of all this service is free and easily removed if needed unlike Lo-Jack.

Adeona is designed to use the Open Source OpenDHT distributed storage service to store location updates sent by a small software client installed on an owner’s laptop. The client continually monitors the current location of the laptop, gathering information (such as IP addresses and local network topology) that can be used to identify its current location.  At the same time, it is easy for an owner to retrieve location information if the need arises.

OSX,Windows XP\Vista and Linux versions available. You can install retrieval tools on another PC to pull information of the missing laptop if needed.

The OSX version is by far the most impressive boosting the ability to take snapshots of the perps using the built in webcam and using the isightcapture

Give it a try! Im sure I will be installing this on my laptops. (Can be used on Desktops,Servers etc too!)