Galileo - Convenient taxation for travellers
It's pretty well apparent that Galileo is going to be the basis of a Europe-wide taxation system that will not only provide users with navigation, but will provide the governments with accurate logging of travel data.
A small receiver in each car and proximity download stations along entrances to motorways and towns will frequently update the vehicle taxation database, and money owed will be deducted automatically from the owner's bank account. This will eradicate toll booths, traffic monitoring cameras, and at some stage even speed cameras.
So which governments aren't going to scrape together the initial finance. After all the potential rewards are absolutely huge!