IPhone 4 models. In fall 2010, pentalobe screws started to replace the Philips screws used in post-repair units in the US and in production units in Japan. The iPhone 4 shipped with iOS 4, which was the newest version of Apple's iOS mobile operating system at the time. iOS 4 introduced a multitasking system, allowing apps to remain "suspended" in memory, perform certain operations in the background, and allowing users to switch between apps using an on-screen menu. It also introduced FaceTime, which allows users to perform video calls between other iPhone, iPad, iPod Touch, and OS X users. The iPhone 4
IPhone art IPhone art iPhone art is a form of Interactive art that takes place on the screen of the iPhone, iPad, or iPod Touch. It is distinct from pictorial works of art produced with an iPhone using paint apps such as Brushes or ArtRage. iPhone Art evolved from screen-based interactive art that formerly appeared on PC computer screens or on wall-mounted displays in galleries and museums. Due to the portability and ease of distribution with the iTunes App Store, these forms of art are currently experiencing a renaissance as interactive works of art from the 1990s and 2000s are adapted to