do they report their velocity back to a home server somewhere? so then everyone who buys one would be reporting back to home-base that, e.g., there's congestion on I-5 because there's a ton of our "Dash" GPS units stuck theree, not moving?
If so, cool idea. (If not, feel free to "steal" my idea)
If so, cool idea. (If not, feel free to "steal" my idea)