IPhone
On June 24, 2010, a new version of the iPhone, the iPhone 4, was released. It has the forward camera included, which is placed on the screen and allows taking self-portraits. This camera is less advanced than the back camera, but can be used for video-telephone, where the members of the talking can see each other on the screen. Additionally, it has an updated operating system that allows quicker navigation of all the features. This operating system is called IOS. The iPhone 4 also has more pixels (326 ppi; 960×640) on the screen than previous version of the iPhone.