But it is NOT a real smartphone data plan. It is the amount of a data only a texting phone can use (and, not surprisingly, $10 is the cost for an additional texting-only line). There is no one who has a smartphone who uses that little data. The way they have pitched the concept of tiered data is that some who have data plans use a lot less than others, so a flat rate hurts them, they could be paying less if the heavier users are paying more. And that seems fair.
But, as it turns out, NO ONE will be able to continue to use the same amount of data, but pay less under this new plan. Even the lightest smartphone users will have to get the lowest *real* smartphone plan, 2 GB, which cost the same as the current unlimited plan.
Edit: they just posted the actual details of the plans and the 75 MB tier is not even available on smartphones, which makes sense for all the reasons I set out above. So, the lowest smartphone plan IS the 2 GB, at the same price as the current unlimited plan. So, it is only going to cost the same or more. NO savings even possible for smartphone users.