[powerlifter]

Have you looked at Low-cost Europe cell phones and European SIM cards they have a data system to work in all three countries. Look at the T&C I think there is a $60.00 a year charge to keep active. I have never used them so I do not know how the service is. They charge your credit card after you use the service. It is not prepaid. They are based in NY so you get the sim before you go. I myself use local sims. This is just another Idea.