iPhone 4 unveiled with huge new features

San Francisco: Apple CEO Steve Jobs says the next iPhone will have a clearer screen and will be noticeably thinner than previous versions of the device.

Jobs kicked off Apple's annual conference for software developers Monday by discussing improvements in the influential touch-screen device, but he didn't initially disclose the price or release date.

The newest model is called iPhone 4. It is less than 10 millimeters thick (about three-eighths of an inch). The previous iPhone, released last year, was about 12 millimeters, or nearly half an inch. It has a higher-resolution screen and a front-facing camera, which could be used for videoconferencing, in addition to one on the back.

Jobs called it "the biggest leap since the original iPhone."