Does anyone know if they're selling some prepaid 3G (mobile phone) cards at El Prat airport? Shortly I'll be going to Barcelona for 4 days, and I'd like to buy a prepaid 3G-card to put in my iPhone (I'd like to check my work-related emails etc while I'm in Barcelona). Does anyone know if I can buy such a prepaid 3G simcard in El Prat Airport or somewhere else in Barcelona? Thx in advance