You could get yourself one of these:
It creates a local wifi that any lappy or netbook can access.
http://www.three.co.uk/Devices/Huawei/E586/Black?typeSearch=‘dongle*’
I have one of these wifi dongle thingies, very good and can either be powered from the lappie or an inverter if in the truck. Pity the internal battery didn’t last longer.