The iPhone was the first generation of iPhone designed and marketed by Apple Inc. and was succeeded by the Apple iPhone 3G. It was announced on January 9, 2007 after months of rumors and speculation. The iPhone was introduced in the United States on June 29, 2007 before being marketed in Europe. It featured quad-band GSM with GPRS and EDGE.
The Apple iPhone functions as a camera phone, including text messaging and visual voicemail, a portable media player, and an Internet client, with e-mail, web browsing, and Wi-Fi connectivity. The iPhone user interface is built around the device’s multi-touch screen, including a virtual keyboard rather than a physical one. Third-party applications are available for the iPhone from the App Store, which launched in mid-2008 and now has well over 300,000 “apps” approved by Apple. These apps have diverse functionalities, including games, reference, GPS navigation, social networking, and advertising for television shows, films, and celebrities.