Here are some of the security constraints for the $100 laptop being designed by the One Laptop per Child (OLPC) project. The laptop must not be plagued by the viruses, worms, and Trojan horses that are common on Windows, yet the children who use the laptop must be able to download and run software at will. The computer must not allow students to fake e-mail and instant messages to one another, but students must not be required to use passwords. Shipments of laptops must not be a target of theft even though they are being sent to countries where official corruption is endemic and more than half of the economy is illegal. ... http://www.technologyreview.com/blog/garfinkel/17522/ -- ________________________________________ http://users.ntua.gr/karounos/ - skype: karounos