I'm going on a bicycling vacation this summer to Belgium, Holland, Denmark, Norway and Sweden. Naturally I'm thinking about whether or not to bring my iphone, ipad, or Macbook Pro. I will definitely need one or two of them since I'm going to be replying to medical school interview requests and I'll need a consistent interface to type on to respond to those requests. What are my options when it comes to getting some sort of voice/data plan while traveling in those countries? Can I get something like AT&T's data only plan for the 3G ipad? How much will it cost, and is there some sort of Europe wide plan where I can buy a 3G plan in Belgium and use it all the way through to Norway?