[userbinator]

I believe in those cases even after you pass the throttling limit you can continue to transfer data at however much 3g speeds will get you for the rest of the billing period, and thus they won't cut off your service for using "too much".

[MichaelZuo]

3G speeds can technically mean as low as 256kbps so it would in fact be literally unlimited since it’s not that much data total even running 24/7.