We have "Smartphones from so many different manufacturers, with some licensing the same OS (Operating System) and/or using their own propriety ones, it can sometimes be hard to choose both an OS and manufacturer while still being completely happy with them.....
Most people nowadays want to protect their latest phone purchase and aluminum; hard plastic, soft rubber and leather are examples of the types of material that are available for mobile phone cases....
Its like watching a long drawn out game of chess; I am talking about the seemingly never ending patent wars between wellApple and just about everybody else in the cell phone world.............