Less than two weeks before the iPhone's much-anticipated release, Apple announced two noteworthy improvements to its previously published specifications. First, Apple now claims a much longer battery life. According to Apple's statement, the iPhone will offer "up to 8 hours of talk time, 6 hours of Internet use, 7 hours of video playback or 24 hours of audio playback. In addition, iPhone will feature up to 250 hours - more than 10 days - of standby time." The second change is in the iPhone's top surface, including the touch-screen display, which will be made of optical-quality glass instead of plastic, thus making it more scratch-resistant.