MacTrak
Hello,
Full disclosure here, I am the Founder & CTO of GadgetTrak, which makes MackTrak.
We designed MacTrak
http://www.gadgettrak.com/products/mac/ differently from other anti-theft applications, in that it does not send any information to a monitoring center. Other products provide a monitoring center and staff the ability to access your device, access your camera and sends data to their servers outside the US.
The fact that we were making use of the camera as well as utilizing wi-fi positioning to get the location of the device within 10 meters raised some serious privacy concerns. To mitigate this risk we removed the third-party monitoring center altogether. Once you activate the software remotely all data goes directly to your email and your Flickr account, no location, images etc ever come to our server, only to the accounts you specify.
For more infromation regarding our privacy safe approach please visit:
http://www.gadgettrak.com/products/mac/privacy/
If you need assistance when your Mac is stolen you can forward the information on to us, or provide law enforcement with our contact details and we can work with them to recover the device.
If you enter the promo code "macrumors09" a 30% discount will be applied.
Please let me know if I can answer any questions.
Thank You
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Ken Westin
GadgetTrak Founder & CTO
http://www.gadgettrak.com
http://www.twitter.com/kwestin