Mobile device safe driving

1. A mobile device, comprising:

a display device; and

a processing system to implement a safe driving service that is configured to perform operations comprising:

determining whether a user of the mobile device is driving a vehicle or is a passenger in the vehicle;

responsive to the determining that the user is driving the vehicle, activating a safe driving mode of the mobile device to cause the display device to transition to a driving mode lock screen without entry of an authentication credential; and

disabling features of the mobile device while the safe driving mode is activated.

2. A mobile device as recited in claim 1 , wherein the safe driving service is configured to register safe driving events and unsafe driving events associated with use of the mobile device by a user of the mobile device driving.

3. A mobile device as recited in claim 2 , wherein the safe driving service is configured to aggregate the safe driving events and the unsafe driving events to generate a safe driving report that indicates one of safe driving or unsafe driving.

4. A mobile device as recited in claim 1 , further comprising:

a communication interface for communicating with one or more other devices that are associated with the mobile device; and

wherein the safe driving service is configured to communicate a safe driving report to an associated device of the mobile device.

5. A mobile device as recited in claim 4 , wherein the safe driving service is configured to generate the safe driving report to indicate that the features of the mobile device were enabled by user override of a safe driving mode while the mobile device was moving in a vehicle.

6. A mobile device as recited in claim 1 , further comprising:

an integrated digital camera of the mobile device that generates a digital image; and

wherein the safe driving service is configured to determine whether the user of the mobile device is driving or is a passenger in the vehicle based on the digital image.

7. A mobile device as recited in claim 1 , further comprising:

an audio sensor configured to detect audio in the vehicle; and

wherein the safe driving service is configured to generate an unsafe driving notification to indicate that the audio in the vehicle is a driver distraction.

8. A mobile device as recited in claim 1 , wherein the safe driving service is configured to:

determine that the mobile device has stopped in a vehicle at an unknown location;

determine a position of the mobile device based on location data; and

generate an unsafe driving notification to indicate that the vehicle has stopped at the unknown location.

9. A method, comprising:

displaying a device lock screen on an integrated display device of a mobile device;

receiving user input entered on the device lock screen without receiving an authentication credential;

transitioning from displaying the device lock screen to displaying a driving mode lock screen;

activating a safe driving mode of the mobile device; and

disabling features of the mobile device while the safe driving mode is activated.

10. A method as recited in claim 9 , further comprising:

registering safe driving events and unsafe driving events associated with use of the mobile device by a user of the mobile device driving.

11. A method as recited in claim 10 , further comprising:

aggregating the safe driving events and the unsafe driving events; and

generating a safe driving report that indicates at least one of safe driving or unsafe driving.

12. A method as recited in claim 11 , further comprising:

communicating the safe driving report to an associated device of the mobile device.

13. A method as recited in claim 9 , further comprising:

generating a safe driving report that indicates the features of the mobile device were enabled by user override of a safe driving mode while the mobile device was moving in a vehicle.

14. A method as recited in claim 13 , further comprising:

determining that a user of the mobile device is driving the vehicle based on sensor data from a driver determination sensor;

generating an unsafe driving notification to indicate that the user is using the mobile device while driving the vehicle; and

communicating the safe driving notification to one or more other devices that are associated with the mobile device.

15. A method as recited in claim 9 , further comprising:

determining that the mobile device has stopped in a vehicle at an unknown location; and

generating an unsafe driving notification to indicate that the vehicle has stopped at the unknown location.

16. A method as recited in claim 9 , further comprising:

detecting an audio level in a vehicle; and

generating an unsafe driving notification to indicate that the audio level in the vehicle is a driver distraction.

17. A method as recited in claim 9 , further comprising:

determining that a user of the mobile device is a passenger in a vehicle; and

enabling the features of the mobile device responsive to the determination that the user of the device is the passenger in the vehicle.

18. A method, comprising:

displaying a device lock screen on an integrated display device of a mobile device;

determining whether a user of the mobile device is driving a vehicle or is a passenger in the vehicle;

responsive to the determining that the user is driving the vehicle, activating a safe driving mode of the mobile device to cause the display device to transition to a driving mode lock screen without entry of an authentication credential; and

disabling features of the mobile device while the safe driving mode is activated.

19. A method as recited in claim 18 , further comprising:

determining that the features of the mobile device were enabled by user override of a safe driving mode while the mobile device was moving in a vehicle; and

generating a safe driving report to indicate that the features of the mobile device were enabled by user override of a safe driving mode while the mobile device was moving in a vehicle.

20. A method as recited in claim 18 , further comprising:

determining that the mobile device has stopped in a vehicle at an unknown location;

determining a position of the mobile device based on location data; and

generating an unsafe driving notification to indicate that the vehicle has stopped at the unknown location.