That is their prerogative, though, and I don't begrudge them the opportunity to try. But short of setting up in-store cell systems that cut out those of the ind

That is their prerogative, though, and I don't begrudge them the opportunity to try. But short of setting up in-store cell systems that cut out those of the individual carriers, I don't see how they'll manage it. I never use in-store wifi and only turn on data if _I_ need data. I'm always amazed by people who complain about battery life, yet wander around with wifi,data, and bluetooth running 24/7. :-)