Zero-emissions. Smooth lines right out of Tron: Legacy. Scenic, rendered vistas. Yup, sounds like a design firm's taken a crack at the future of camping. Let's have a peek. Called the Ecco Camper, this concept fills up with electricity and skirts occupants off on what appears to be a luxurious, albeit slightly cramped jaunt across desert locales, the beach and what looks like salt flats.