[U-Boot] U-book and GPLv3? (fwd)

[Richard Stallman]

    I can't see how someone can deny access to the network, while still allowing 
    anyone's software to be run on the device, without some sort of key system in 
    the networking hardware - is that what you had in mind?

This is aimed at cell phone networks: it recognizes they are allowed
to make the network refuse to talk to a phone if the users's changes
cause the phone to screw up the network.