Apple iPhone 4S

Released for AT&T, the Apple iPhone 4 is a glass and stainless steel that measures just 9.3 millimeters in width -- 24 percent thinner than the existing 3GS. It also has a higher-resolution 3.5-inch touch screen display that renders text and images for amazing clarity -- 78 percent sharper than the iPad. The iPhone 4 also has a highly-anticipated front-facing camera, which can be used for videoconferencing, in addition to one on the back. A new gyroscope offers three dimensional movements with six-axis controls, perfect for gaming. Additional features include dual-microphones, 802.11n Wi-Fi, high-speed HSDPA Internet and integration with iBooks and iAds...