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Los Angeles (USA), Phil Schiller, vice president of Apple, today officially introduced a new version of iPhone4 called iPhone 4S, which will be up to seven times faster his original model.

This model, similar in design to the iPhone4, A5 contain the dual-core chip, the same as is installed on iPhone 2 - and two antennas to improve reception, sound quality and speed of data download. Also include an 8 megapixel camera.

The event, organized in the company's campus in Cupertino (California), Tim Cook, CEO of the company, announced that updates the operating system for mobile devices, IOS 5, which integrates social networking services IMessage Twitter and includes an instant messaging system between users, will be released on October 12.

Will be available free for iPhone 4, the 3G, the iPhone 1 and 2 as well as the latest iPod Touch.