Thanks. This is very helpful. Are you able to sign up for these services for just one month? In the U.S. you are usually required to sign a one or two year contract, but I don't think this model is common outside of the U.S.

It would be very useful to have one of these types of plans for 1 month that allowed for roaming throughout Europe, not just in one country. I realize that a plan like this would be more, but does it even exist? I don't think I need a huge amount of data. I plan on just using email and some mapping and web, no video or music streaming or anything like that.