Vodafone is offering a 3G modem that run on the speed of 7.2 mbps (theoretical peak speed) that can be connect to your laptop via USB. The USB Modem 7.2 is available in UK with a service contract of 25UKP/month and 49UKP to get the modem. It will work in other countries too with compatible networks but will cost quite a lot per MB.

[via Ubergizmo]