More Cell Phone Etiquette

Our city (Sioux Falls) just began a "texting ban" last Friday, making it an offense to text while driving. To me this is nothing short of amazing. People do all sorts of silly things while driving but I cannot imagine anything more dangerous and distracting than texting. What's amazing, of course, is that we need an ordinance as an effort to regulate this behavior. Unfortunately, a motorcyclist was killed earlier this year by a man driving well over the speed limit AND sending a text message at the same time. There is really a message that needs to be sent so urgently that it cannot not wait until your destination is reached?!
As you have likely experienced, there are all sorts of rude cell phone behaviors. When I was in the retail business it was always maddening when people would talk on their cell phones the entire time they were checking out. Oftentimes people, while in a conversation with another person, will answer their cell phone or read a text instead of concentrating on the live person in front of them - how dehumanizing can we get? It wasn't too many years ago (15-20) that cell phones were very rare and the only people carrying them were construction foremen and realtors. Somehow they have become indispensable devices to the expense of (what used to be common) polite human contact.
Here is a suggestion I saw on another blog today (Deacon's Bench). If you have other suggestions please post them.