Originally Posted by vortix

My brothers and grandfather are going to England tomorrow afternoon for one week. They will have an AT&T iPhone (not unlocked), and two unlocked GSM cell phones (not smart phones). What is the best pre-paid SIM card to get once they arrive in England? Ideally, they would find something with a low rate to call US phone numbers. An alternative could be something with a low rate to call toll-free or local UK #'s, paired up with a low-cost calling card they could use to make outgoing calls to the US.