Two possible scenarios regarding eVu's and rental cars ... 1. rent an eVu when you pick up your rental car, use it while at your destination, and return it with the car. 2. rent an eVu at the car rental counter at the originating airport and return it when you return, This way you have use of the eVu during those long hours of waiting for your flight to take off, as well as on the flight, and during your entire trip, and on the return flight. Under both scenarios, eVu rentals could be supplemented with destination advertising, local information, and GPS maps. IMHO, either option would give car rental companies a significant competitive advantage.