I bought a beanbag-style Bracketron friction car mount on eBay, like this one. I'm satisfied with it. It stays where you put it on the dashboard and it holds my N800 securely but gently. It's easy to get the N800 into and out of it. It can hold the unit horizontally or vertically, and it doesn't press the buttons along the top edge -- in fact, the user still can access them. It might be a problem if you sat very low in the seat as it is hard to tilt the screen downward.