Apple has made iOS 5 available to users of the iPhone, iPad, and iPod Touch. iOS 5 adds a significant number of new features to Apple's iOS device line, including improved notifications, iMessage, Twitter integration, wireless syncing, Newsstand, Reminders, and tweaks throughout the operating system. iOS 5 can be used on the iPhone 4S, iPhone 4, iPhone 3GS, iPad 1 and 2, and the third- and fourth-generation iPods Touch. Users must connect their device to iTunes in order to download the system update.



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