I'm not sure if this isn't an urban legend (I couldn't find any references on wikipedia)) but I was under the impression that the infrastructure used by sms wou

I'm not sure if this isn't an urban legend (I couldn't find any references on wikipedia)) but I was under the impression that the infrastructure used by sms would have been needed anyway for other GMS related services: transmitting things like the time etc., and sms doesn't cost them any extra. In this case at least, it definitely reeks of double dipping.