Apple boss Steve Jobs officially announced the 3G iPhone at the Worldwide Developers' Conference (WWDC) today. The 3G iPhone will be available for $199 in the US, is thinner at the edges than the first generation iPhone, features sold metal buttons and the same screen as the original.

Jobs said the 3G iPhone is "amazingly zippy", claiming that download speeds approach those that can be achieved with Wi-Fi. Two other smartphones were used to demonstrate the iPhone's speed superiority - the Nokia N95 and Treo 750, and Apple claimed the iPhone is 36 percent faster than them.

3G iPhone is official

And the introduction of 3G capabilities won't hurt battery life, Apple claims. The 3G iPhone will last for 300 hours of standby time, while 2G talk time is up to 10 hours (from eight hours). On 3G talktime, while other phones have 3-3.5 hours, the iPhone has five hours of 3G talktime, Apple claims.

"That's actually a very large amount of 3G talktime. We're very proud of this," said Jobs.

3G iPhone

Meanwhile, the 3G iPhone is capable of up to five-to-six hours of high-speed browsing, seven hours of video and 24 hours of audio.

The 3G iPhone, which also features built-in GPS support, will be available in 22 countries, starting from July 11. The 16GB version of the handset will be priced at $299 in the US, $100 more than the 8GB model.

The iPhone first went on sale in the US last summer, and Jobs claimed today at WWDC that "it's widely believed that this is the phone that has changed phones forever." Apple sold 6 million iPhones in the first year

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Official: 3G iPhone announced by Jobs