My son is visiting Germany for about 10 days during in summer 2012. He has a unlocked GSM phone. I would like to get him a German SIM card with enough credit on it for him to have broadband access and to be able to make calls and SMS while over there. The fly in the ointment is I don't know if he'll have time to set that up given he'll be on school trip with limited free time.
Is it possible for buy one ahead of time allowing me to set it up for him? I have searched online but all I seem to find are absolute ripoff plans. He'd be better off with global roaming from AT&T.