You would have to tether it. They offer a hotspot option if your phone supports it for extra. You would have to hook it to a PC and then share it out with ICS or maybe connectify hotspot software.
In anycase as soon as you hit 2.5g in a month they will greatly reduce the speed. The fine print says unlimited is only for the first 2.5g after that you can get as much as you want but at a really slow speed.