Apple iPhone 4S review: Apple iPhone 4S - CNET

It lacks the impact of the iPhone 4, and if you already own its predecessor there

Apple iPhone 4 Virgin Mobile review: Apple iPhone 4 Virgin Mobile - CNET

6 ways the iPhone 4S, iOS 5 fall short in the car - CNET

Apple's iPhone through the years - CNET

CNET: Product reviews, advice, how-tos and the latest news

Apple Introduces iPhone 4S with A5 Chip, Faster Graphics, Siri Voice Assistant - MacRumors

iPhone 4s - Wikipedia

Apple iPhone 4S review - Hardware (1) - CNNMoney

iPhone 4s Review - A Serious Upgrade from the Apple iPhone 4

Apple iPhone 4S: Thoroughly Reviewed

iPhone 4S review - The Verge