The new Apple iPhone 4S failed to impress analysts looking for further advances in design and capabilities. This is the fifth generation of the iPhone that was first introduced in 2007. It has a speedier processor, an improved camera, and voice-command services. The iPhone generated $13.3 billion out of total Apple revenue of $28.6 billion, in second quarter 2011. Analysts estimate Apple sold 22 millon iPhones in the third quarter 2011, and is expected to sell 25 million iPhones in the fourth quarter. The 4S iPhone uses the same Apple A5 processor chip that is found in the iPad 2 tablet, with twice the earlier speed for downloading data, and seven times faster speed for graphics enabling better videogame display. A personal assistant software Siri enables voice commands for checking weather and responses to text mesages. Prices start at $199 for 16 gigabyte models with a two year contract. Sprint, AT&T and Verizon will offer the phone.