Young people now see the cellular phone more as a fashion accessory than something that is immensely clever; many new versions are designed and marketed purely for young people's use.
As far as the professional world is concerned, the cell phone has a much more important, if mundane to some, function. They simply use it to communicate important information instantly around the globe. This has created a situation with manufacturers having to constantly update and redesign phones so they are not out of date as soon as they are on sale.
