I think that $1 per hour is high considering that large volumes of data can be had for $30 a month or less in the US. In other words, many people can run Pandora all month on their iPhone without additional cost. Wanting HN or TechCrunch is not the same as spending $10-$20 a week to get it during your commute...the demographic for whom such access is time critical is probably very small.

I still think there is something there, I just think that the a pricing model where the meter is always running discourages casual use, particularly when you can potentially run up several hundred dollars a month in use.