New smart phones pave the way for mobile video chats


The new iPhone 4 also will have a higher-resolution screen, longer battery life, and thinner design. It will cost $199 or $299 in the U.S. with a two-year AT&T contract, depending on the capacity. The iPhone 3GS, which debuted last year, will still be available, for $99.

The display on the iPhone 4 remains 3.5 inches diagonally, but Jobs noted that it can show four times as many pixels—the individual colored dots that make up an image—as the previous screen. That makes for a sharper appearance.

The battery on the new iPhone will allow up to seven hours of talk time—an improvement over five hours on the last model. It can handle up to six hours of web browsing over cellular networks or 10 hours over Wi-Fi.

The new phone will run the latest version of Apple’s mobile software, now called iOS4, which Apple unveiled in April to offer such features as the ability to operate more than one program at a time. Older iPhones and iPod Touch devices will be able to get iOS4 as a free download June 21, though not all features will work on them.

Michael Gartenberg, a partner at analyst firm Altimeter Group, said the iPhone upgrade puts pressure on smart-phone makers that use Google’s Android operating software. Android, which was first released on a phone in 2008, has been gaining popularity as major phone makers such have Motorola Inc. have relied on the software for iPhone rivals such as the Droid.

“I think Apple knows how to teach people about things they don’t yet know they want,” he said.

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