The obvious solution is to add a motion detection circuit to these devices. When they move faster than, say five mph, they turn off or go blank until their motion drops below the threshold. Detecting motion could be done in several ways: (1)doppler shift of the tower signals, (2)triangulation shift of the phone location, (3) GPS location shift, etc. This is a no-brainer.

Humm... seems like those inventions could have been designed without the expense of going to the moon. Nice info on Tang and Velcro though... I just used them to make a point. Thanks...

I assume you are kidding... ...funds would be better spent on saving Earth. The manned space station is a project without a purpose. So far as I know it has yielded no substantial science. NASA is offering free time on it in a desperate attempt to find a use for the thing!

Once again, besides Velcro and Tang, what have we gotten from manned space flight?

Put a cell phone jamer in each car -- that turns on when the car moves. Then people would have to stop to use the phone...