[Legion]

That doesn't significantly change the issue.

Whether one can cut the bill immediately or in X months time, the point is that the last thing AT&T should want is people saying, "why am I paying $X when I hardly use it?"

They should want to have mobile data usage so ingrained in their customers' lives that people wouldn't dream of cutting it when their contracts run up.

AT&T has sold a lot of data plans by making them required for iPhone purchases, and plenty of people wanted the fancy new toy. What happens when smartphones aren't the fancy new toy? How many AT&T iPhone customers, if they had to drop their iPhone and get another phone, would still buy a data plan if it was simply an option rather than a requirement?