Too Long; Didn't Read
There is no harm in saying that the world is turning out to be mobile, but there are some opportunities as well as challenges that follow. For the developers (people behind the scene of development) that develop a mobile application it becomes very important to maintain that user-developer relationship. Some of these apps are not all just for business promotion; but can be used by the user for recreation. There is hard competition between smart phones running on iOS, Android, Windows and to some extent Symbian OS.