Tom mentioned mapping softwear. We are going to be hiring a car in both the US as well as Europe soon. Our travels over the years have been punctuated by quibbling and worse between driver and navigator(guess who drives). It seems as if these geo mapping devices may be the answer. I hired a car in LA last year with one and it was fantastic but I believe that one can buy stand alone devices. I would welcome info such as -are they easy to use -recommneded brands -suitability for use in different locations -etc- don't quite know what I don't know.

Thanks Alan in Australia