Also have a look at Adeona (http://adeona.cs.washington.edu/ http://adeona.cs.washington.edu/) Its a similar free product that goes to great lengths to anonymi

Also have a look at Adeona (http://adeona.cs.washington.edu/ http://adeona.cs.washington.edu/) Its a similar free product that goes to great lengths to anonymise the tracking data from the laptop and de-centralise the storage - mostly by leveraging OpenDHT (http://www.opendht.org/ http://www.opendht.org/) I also agree with the other commenters about people being wary of centralised control, and the security risks that a compromise of your server could potentially cause (downloading of arbitrary files on all your users laptops by an attacker!) Your added value here is file recovery, which I haven't really seen done before - perhaps you could expand the Adeona concept with that - and while you're at it wrap Adeona with something more friendly to install and understand. huhtenberg has a valid point with the beacon survival, but callings yours 'quite lame' was a bit harsh!