
I've found a way to make a simple GPS tracker to be built in Kronos. Nowadays Windows Mobile used communicators on a second hand market are really cheap. Here in Russia you can get one (Glofiish x500+) for 15$ or less.
So the idea is to use that PDA, which can charge itself via Kronos inner usb port, and place it near plastic/ wooden cheeks so GPS will receive satellite signal, and install any of the GPS / gsm tracker software.
You can also install any other security software, making an alert when device is moved or when there' s a sound outside Kronos. It could ring alarm or tell in human voice a prerecorded message - "you have 1 minute to run away, police is on its way here"))
Another option would be using iphone 3g, or any cheap android based smartphone with a GPS chip. With Google Maps installed and launched, any of these devices will turn into a GPS tracker, as G. Maps can be set to constantly monitor your moves and display it on its website.