OOps, I went off topic. Sorry. OK, how about this? Phone uses GPS to detect vehicular movement. The phone then prohibits texting when the vehicle is in motion. Boy, would I like to see that. It would also be nice if the phone could detect the vehicle stopped at a red signal and disable texting at that time too. GPS can resolve the distances involved.

It used to be fun blowing my (LOUD F-150) horns, informing the texting Bozo in front of me that the light turned green, and that (s)he should put down her phone and start &^$$% driving. Maybe louder horns will make this activity fun again?