iPhone OS 4 which is named IOS 4

Monday, June 7, 2010, Apple finally officially introduced the fourth generation iPhone, which Apple's fourth generation is not going to be called by the name of the iPhone nor the iPhone 4G and HD, but the more simple the iPhone 4.
iPhone 4 has only 9.4mm thick, about 24% thinner than the iPhone 3G and comes with a 3.5-inch screen that is named Retina Display, which features a 960 x 640 pixel resolution that is superior to less than the OLED display.
Here are some new features of the iPhone 4: 1. iPhone OS 4 which is named IOS 4 2. 3-axis gyroscope (a nice feature for gaming) Three. Recording HD video (720p at 30 fps), 4. Front camera for video calls (video calls using FaceTime applications, but are only available for connection via WiFi) 5. Batteries are better able to survive up to 300 hours standby time 6. Netflix 7. iBooks 8. iAds 9. iMovie