IOS 4

iOS 4 is the newest generation of the operating system on iPod touches, iPhones and iPads. It is for the iPhone (3G and 3GS) along with being available for the iPod Touch (2nd & 3rd Gen). The update is free and includes a multitude of new features. The features include, but are not limited to:


 * Multitasking
 * Folder Organisation
 * Multiple Mail Boxes
 * iBooks
 * iMovie
 * Creation of Playlists
 * 5x Digital Zoom for Camera (Only for iPhone 4 and iPod Touch 4G)
 * LED flash (Only for iPhone 4)
 * Tap-Focus for video
 * Picture Identification
 * Homescreen Wallpaper
 * Ability to 'Gift' Apps
 * Spell Check
 * Bluetooth Keypad
 * Ability to rent movies
 * Game Center
 * Facetime (iPod Touch 4G and iPhone 4 only)

The most current version is iOS 4.2, which itself contains Airplay, Airprint, and other small features.