[bluedino]

What percentage of subscribers to mobile internet in the USA use pre-paid services compared to contract? And what about the other countries where it's cheaper?

Most pre-paid providers in the US go through a MVNO (basically a reseller) affiliated with Sprint. Therefore performance in most cases is terrible. I can burn up a Verizon or AT&T-based mobile phone hotspot pretty quickly thanks to the high speed an low data cap (3-5GB).

There's wifi everywhere, or I think there'd be a bigger push for this. I might only use 300mb of cellular data a month as long as I don't stream or do something like an OS update on mobile.