Jailbreaking an iPhone Is Now Officially Legal (in the US)
The Library of Congress has issued a statement that allows the breaking of copyright protection in certain cases, as part of the fair use doctrine of copyright law. This statement covers the protection applied to a smartphone to limit access to the file system and prevent users from installing software, among others. It is this [...]
http://blog.intego.com/2010/07/27/jailbreaking-an-iphone-is-now-officially-legal-in-the-us/