To stonogo's point, the security systems for XO actually model that threat, and do a fair bit to reduce the risk. Foremost protection against theft is that the

To stonogo's point, the security systems for XO actually model that threat, and do a fair bit to reduce the risk. Foremost protection against theft is that the laptops are brightly colored and made of shiny plastic, like toys. In a successful deployment the sight of children with their laptops is normal but an adult with one is quite unusual. The technical security in the OS (wiki link above) is remarkable. I think it inspired many aspects of other security systems we use today (Gatekeeper/Sandbox, for one).