Apple announced on Monday that the iPhone will deliver higher talk time than originally expected.  The iPhone will feature up to 8 hours of talk time giving it the highest battery life of any other competing phone. 

Apple's new phone will also deliver 6 hours of Internet use, 7 hours of video playback or 24 hours of audio playback.  The iPhone will also feature 250 hour—more than 10 days—of standby time.

The company also upgraded the screen on the phone from plastic to optical-quality glass.  The new upgrade gives the phone a scratch-resistant screen and better visibility.

“There has never been a phone like iPhone, and we can't wait to get this truly magical product into the hands of customers starting just 11 days from today,” said Steve Jobs, Apple’s CEO. 

Apple's iPhone measures 4.5" x 2.4" x 0.46" and weighs just 4.8 ounces. All input is entered via the device's 3.5" Multi-touch display which features a screen resolution of 320x480. The iPhone runs OS X and includes quad-band GSM/EDGE, 802.11g wireless and Bluetooth 2.0 connectivity options.

The iPhone is set for release on June 29 at Apple online and retail stores and select AT&T retail stores for $499 and $599 respectfully (with 2-year contract) for the 4GB and 8GB versions.