I too have a cell phone, however it is not permanently attached to my person....matter-of-fact, I'm not even sure where it's at. I'm sure its battery is probably dead. I think it's under the seat of the pickup.
No texting, no pictures, no games, no apps.... I don't want to be that accessible all the time. No one outside of my immediate family has my number, so that's less than 5 people. And they know it would probably do no good to call it. (dead battery).
At the risk of being ostracized, I believe you would have to look a long time to unearth another modern day convenience that has done more to promote rudeness in the general population than cellphones have. I just don't think there are that many circumstances that require one to be in constant communication with the rest of the world, constantly.