guten abend, Janine - That is reassuring. Thanks so much ! He had also been wondering about how to use his mobile in Europe. No problem downloading some apps - too many ! - while in the uS.
I think his buddies said that they have GPS on their devices. So the dogs are really good at finding the geocaches ? Our dog only finds old shoes and icky trash. I was in Germany in my college days and loved it. They say a lot has changed. The food and the beer is probably better than ever, though. Thanks a million Euros for the help !