A cell phone (or MP3 player) whose keypad get automatically locked/unlocked in following situations:A) If the device is in an unusal inclination and/orB) If there is something within 20 cm from the display (e.g. a bag boundary when inside a bag) and/orC) A light sensor senses the dark (when inside a bag) and/orD) An electric field sensor senses a hand behind the deviceMethod A) and D) could also activate automatically the display(Idea patent pending)

What do you think of this idea or comment?
(You can change your vote at any time)

I agree

No opinion

I disagree