Considering you can get 4 Gb per month from verizon right now for $30, dont know how they will sell half that amount for the same price.
I believe the current individual plan is officially 2GB, but with a promotional "double data" offer that gives users buying LTE phones 4GB for the 2GB price. It would be nice if that was stIll around when the LTE iPhone is released, but who are we kidding? It'll be back to 2GB by the time the LTE iPhone comes out.
However, if the 4GB for $30 individual plan becomes permanent, that changes the predicted family plans significantly. That would make the base family plan 6GB for $50, with $70 buying 12GB. These plans strike me as fair, especially if they don't charge a per-line fee (at least for iPads and any other data-only devices) or tethering fee. But again, who are we kidding?
Let's set all that aside, though, and just speculate... What would be a fair data pricing model? I think a simple $10/GB for the first 5GB, then $5 for each additional GB would be fair, so long as users only pay for what they use. $5 per device.
So if you had an account with 3 iPhones and 2 iPads, you'd have $25 in per-device fees to start, and then however much data is actually used. If its 5GB total (1GB per device), the data bill is $75 for that month. If its 10GB total, the data bill is $100.
This model makes a ton of sense, which is why it'll never happen. If only...