free tracking software for stolen laptops - preyproject

An acquaintance recently had a stolen laptop, and I was very surprised to find that she had installed a free laptop tracking program on it. I viewed the tracking report from the program/service, and it was incredible.

The service showed the location on a google map of the laptop. It showed a screen shot of the desktop of the laptop. It even showed the a capture from the built in web cam of the person using the laptop. This service/program has a free option which seems to be fully functional, but it also has a paid version with more features. In the case of this laptop theft, the free version was sufficient.

The site for the service and program is:

http://preyproject.com/

I have already installed this on my own laptop.