I've never used my iPhone in Europe (except at wifi points) because of the high roaming costs. But when I upgraded to the latest iPhone I kept my old one and would like to take it with me to Sicily in May and have it fitted with a European card and monthlong data plan. To be honest, my main goal is to use the GPS to find myself on maps when I get lost or turned around in towns and countryside. Does anyone know what I should do? I'll be landing in Palermo and making a circuit of Agrigento, Siracusa, Etna, Taormina, Cefalu, Monreale, and Palermo. Thanks!