The iPhone smartphone designed by Apple Inc. The first iPhone was introduced on January 9, 2007. The iPhone runs on the iOS platform and can download and install applications from the iTunes app store.
An iPhone has several built in functions; video camera, text messaging and visual voicemail, MP3 player, media player, e-mail client, web browsing, and both Wi-Fi and 3G connectivity. The user interface is built around the device's multi-touch screen utilizing a virtual keyboard.