Hoping some of you international travelers could provide me with some good advice. I have a work trip coming up for a week in Finland & Germany. I'd like to know the best deal for getting a SIM card to at least handle data and texting while there. I have an unlocked IPhone I've been using on T Mobile with an older plan which does not include the newly advertised free overseas data and texting that is included on the newer plans. I could change my plan, but since it's just for a week, I don't want to incur the added monthly cost for the service. I'd appreciate someone giving me some pointers. I'm wondering if it's as simple as stopping in the local Edeka store and picking up a pre-paid card. 

D. Wilhite
84' Westy
Middle TN