The mobile phones have been at the beginning just simple phones that we could use for calling anyone at each time we would want to do so. In this way we could be in contact with other people all the time and they would not have to worry if someone tries to call them at [...]

While the market for mobile telephony is undergoing a significant period of sluggish, smartphones , them are in great shape. A success in part is due to the credit of the iPhone. All manufacturers will now try to make their models to offer a user-friendly and suitable device for everyday use, this is not nothing. [...]