Steve Jobs Unveils iPhone 4, World's Thinnest Smartphone

Despite a much publicized media leak of its next-generation iPhone, Apple CEO Steve Jobs still managed to rev up fans and developers Monday as he unveiled iPhone 4, a powerful successor in its smart-phone line.

Photo: Steve Jobs Unveils iPhone 4, World's Thinnest Smartphone

From his customary spot onstage, Jobs previewed the new, slimmer hardware, which comes equipped with a much improved screen, two cameras - including one facing the user for videoconferencing - a faster processor, a gyroscope and a mobile version of Apple's video-editing program, iMovie.

The phone, which will go on sale June 24 for $199 (16 gigabytes) and $299 (32 gigabytes), will also ship with the latest version of the iPhone operating system, now dubbed iOS 4. The new operating system includes multitasking, application folders, the iBooks e-reader app and a new mobile-advertising platform, San Francisco Chronicle reports.

Apple Chief Executive Steve Jobs, ever the showman, demonstrated the new video telephony program, dubbed FaceTime, by using the new iPhone to place a video call to another Apple executive.

"I grew up with 'The Jetsons' and 'Star Trek,' just dreaming about video calls," Jobs said to the crowd gathered at the Moscone Center for Apple's annual Worldwide Developers Conference. "And it's real now."

The iPhone 4, as it's called, is a slimmer, faster version of the blockbuster phone, encased in steel and extra-durable glass and boasting a screen with a resolution quadruple that of the previous model.

"This is the biggest leap we've taken since the original iPhone," Jobs said, Los Angeles Times reports.