IPhone 4S voice control leads device's new features

The iPhone 4S features an amazing 8-megapixel camera, faster dual-core processor and -- most notably --a personal assistant named Siri.

Siri, available only on the iPhone 4S, uses incredibly accurate voice control to answer a sophisticated set of questions and to perform tasks.

The iPhone 4S is off to a strong retail start

The iPhone 4S is off to a strong retail start. Apple said Monday that more than 4 million had been sold since the phone’s Friday launch. That’s more than twice as many as the iPhone 4 sold in the same time period.

Many of the features on the iPhone 4S, including Apple’s new iMessage texting service and cloud-based storage service iCloud, are as well available on any Apple device running the new iOS 5 mobile operating system.

iOS 5 is a free software upgrade available to users of the iPhone 3GS, iPhone 4, iPad, iPad 2 or the two most recent models of the iPod Touch.

But the 4S is however a compelling upgrade to the iPhone family. With Siri as the marquee feature, it’s far and away the best iPhone to date.

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