This is a great idea. The 2010 Range Rover, along with it's awesome new interior, is now including a touchscreen that can be viewed differently from either side of the car. simultaneously, The driver views the GPS while the passenger watches a movie. One problem I've noticed, though, is that the passengers in the back will see both at the same time (more or less). Nevertheless, it's obviously a great addition.
http://www.engadget.com/2009/04/08/2010-range-rover-gets-12-inch-dual-view-touchscreen/
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