Apple CEO Steve Jobs on Monday announced the fourth-generation iPhone during a keynote speech at the Worldwide Developers Conference in San Francisco.

The iPhone 4 sports a new look and is the thinnest smartphone, he said. At 9.3 millimeters (0.36 inches) thick, the new iPhone is 24 percent thinner than iPhone 3GS, Jobs said.

It has a 3.5-inch display that will show images at a 960-pixel-by-480-pixel resolution. The phone includes a sharper display that will show four times as many pixels in the same amount of space as earlier iPhones.

The new smartphone also has about 100 new features, including a front-facing video camera and a new camera system. The phone will support UMTS (Universal Mobile Telecommunication System) and GSM (Global System for Mobile Communications) 3G networks, and has Bluetooth, Wi-Fi and GPS capabilities. It has a Micro-SIM tray on the side.

Full story: Computerworld