The problem for a potential competitor to AT&T that could offer a 'REALLY unlimited' contract is that the people who would switch would be all the really high b

The problem for a potential competitor to AT&T that could offer a 'REALLY unlimited' contract is that the people who would switch would be all the really high bandwidth consumers. All the 'juicy' decently paying, (in reality) low bandwidth people don't feel oppressed by AT&T. So the competitor would just be setting themselves up for providing a better service, for the worst ($/Mb) customers.