A lot of people have mentioned the unsightly cable that connects the rear view mirror's built in camera to its power source. Would it not have been possible to have a rechargeable battery in the mirror assembly that is charged from the driver's visor when it is snapped in place? The video data could be transmitted through microscopic traces embedded in clear sticky tape since they don't need to be big enough to carry much current. Another data option would be an IR laser that beams data to a photodiode on the dash.
This is probably the type of thinking that makes cars 2 years late though...
This is probably the type of thinking that makes cars 2 years late though...