God damn I just "topped up" my paltry 1GB per month in the UK at a cost almost twice that.
I don't care if information wants to be free, but I want my bandwidth to be free :-)
Edit: more seriously is control over the bandwidth usage. I notice my phone does a lot of background work that I either don't have control over or might do but is so diffuse to control I cannot be bothered. A few tens of dollars a month is annoying but it's not making me choose between food or bandwidth as it might in other areas.
I would hope that phones like the locked down android become more widespread or some other approach (can you write an app that controls other apps bandwidth?)