I love the idea of including a “View Source” key into the OLPC keyboard:

Having “the freedom to view the source” can seem very abstract, and having a “View Source” key makes this feature of the machines clear to the users. Imagine one of these kids visiting an Apple Store1 sometime in the future and innocently asking where the “View Source” key is. “Let you view the source? But that’s our property, it belongs to us, you can’t have it.”