The top end smartphones have cameras that are at least good enough to replace casual point and shoot cameras. Their excellent quality is worlds apart from the new Nokia phone's camera. While the vast majority of people use smartphones for calls, sms, and the camera, there is huge growth in mobile based purchasing, gaming, and social network usage. There are lots of different things that people do with smartphones, maybe not everyone uses the same app or game, but the flexibility of the smartphone makes it possible.