> If you buy a cellphone and contract for service for that cellphone
>> with a licensed carrier, then that carrier's license covers the
>> operation of the phone you activated with that carrier. You can't
>> then go out and use other phones under that contract without the >> carrier's consent.
> An interesting theory, although clearly nonsensical with GSM phones.
Not at all, GSM phones don't transmit without a SIM card, and once there is a SIM card in place, you're licensed under the appropriate carrier.