"It should be relatively trivial to restrict text entry when moving at high speeds on a phone with embedded GPS, and doing so would alter the behavior of the th

"It should be relatively trivial to restrict text entry when moving at high speeds on a phone with embedded GPS, and doing so would alter the behavior of the thing causing the distraction rather than the thing you want drivers to pay attention to." True, but that solution would have the unintended consequence of screwing over passengers who may want to text.