Certain professionals, such as doctors, lawyers and businessmen, need to be contacted on a constant basis to be able to fulfill the needs of their jobs. In such a case, I do not see a problem. In fact, technology has greatly improved job efficiency. There is a distinct difference between these professionals and the average over-privileged Emory kid who wants to call their buddy on his or her shuttle trip from the Peavine Parking Deck to the Goizueta Business School. At the same time, the cellular phone is an obvious example of image enhancement.
Some people feel more important or cooler just by having one in their pocket.
It is like ordering vanity on demand. People on cell phones tend not to pay attention when walking around campus. This leads to people standing in front of a doorway or obstructing the path to some common destination, causing a certain level of annoyance. My response to this is that products like cell phones actually deter from communicating. I am not even going to go into the safety issue where people on cell phones try to perform other attention- holding activities, such as driving a car, and end up hurting themselves and others.