The new iPhone 4 is powered by the Apple A4 processor and features a new 326-ppi (pixel per inch) Retina 3.5" display running at 960x640. A gyroscope has also been added, which when coupled with the accelerometer, allows for 6-axis motion sensing. A front-facing camera for video conferencing is new, while the rear-facing camera has been upgraded to 5 megapixels and now features an LED flash. It's also capable of recording 720p video at 30 fps. Other new features include 802.11n wireless networking, dual microphones, a larger battery, and more.