An arrangement for disabling suitably equipped mobile devices senses at least one of: acceleration, jerk, velocity, position, orientation relative to a vehicle location trend, and orientation of a direction of motion. Position and
orientation sensing elements are becoming increasingly prevalent in mobile devices, be they
cell phones, smart phones, portable Internet devices, portable
wireless devices,
mobile Internet devices, Portable Navigation Devices (PND), iPhones, tablet computers, iPads, or Portable Digital Assistants (PDA). Although the operation of which while driving is illegal in many jurisdictions, mobile devices continue to be used by drivers of motor vehicles. Common
perception is that it is dangerous to divide one's attention to activities other than the task of operating motor vehicles, while driving. The present invention discloses a device and method of exploiting intricacies of vehicle movement trends by
processing to sufficient fidelity as to permit extraction an indication of location with respect to vehicle, of a navigating portable
wireless device and temporarily disable. The disclosure teaches use of at least one of: acceleration, jerk, velocity with sufficient fidelity, and differentiation of position updates with sufficient fidelity.