Apple iPhone 4 Features: 15 Things You NEED To Know About The New iPhone

     As many expected, Steve Jobs unveiled Apple's new iPhone 4 during his keynote address at the Worldwide Developers Conference in San Francisco.
Jobs was full of praise for the iPhone 4--Apple's "new baby"--calling the new iPhone an "extraordinary" product that is "going to change everything, all over again."

     Apple hype aside, what does the new iPhone really offer? We've put together a guide to the iPhone 4's features and everything you need to know about Apple's new device.

 

   The iPhone 4 will go on sale in the US for $199 (16GB version) or $299 (32GB model). The iPhone 3GS will see its pricetag lowered to $99.

    AT&T is going to make a "an incredibly generous upgrade offer," Jobs explained. If your contract ends any time during 2010, you can get new iPhone 4 if you re-sign a new contract. The iPhone 4 will still be tethered to AT&T.

 

  Steve Jobs highlighted the iPhone 4's "green" credentials during his demo. The new iPhone is arsenic, BFR, mercury, and PVC free, and also claims to be "highly recyclable." 

 

   The iBooks app is coming to iPhone 4. The new and improved app will sync your iBooks between all your Apple devices. "You only have to buy it once," said Jobs. "And, iBooks will automatically and wirelessly — and for no charge — sync your place, notes, and bookmarks across all your devices." On both the iPad and iPhone, users can take notes in the margins of the e-books, as well as highlight text. The New York Times speculates that these improvements "should help Apple continue to edge out rival e-readers."

 

   The iPhone 4 will also record HD video in 720p at 30fps and will feature tap to focus video, built-in video editing and one-click sharing. While recording video, the LED flash will stay on to illuminate scenes. Jobs stunned the WWDC audience when he announced support for the iMovie application, allowing users to record, edit and render mobile HD video and upload the finished product to the Web via e-mail, MMS, MobileMe or YouTube. The New York Times predicts that these new features "will be a huge help for citizen journalists, DIY documentarians and reporters in the field." Although, another Times reporter notes, uploading movies to the web "will quickly eat up one’s data quota under AT&T’s new plans."

 

 The iPhone 4 will be powered by the A4 chip found in the iPad. "This was designed by our own team. This is wonderful to have in the iPhone," Jobs said (via Engadget).

 Thanks to the iPhone 4's bigger battery and its A4 chip, the phone will last longer. Apple promises 7 hours of 3G talk time, 6 hours of browsing on 3G (or 10 hours of browsing on WiFi), 10 hours of video, 40 hours of music, and 300 hours of standby.