Retina display
The new retina display is stunning, Steve Jobs says, doing a side-by-side with an iPhone 3GS. They have increased the pixel density, putting four times as many pixels in the same amount of space.
The 3.5-inch display is "better than OLED," he says. Contrast ratio is 800-to-1. iPhone OS 4 makes it so your apps automatically run on the retina display full size, he says.
Discuss: Steve Jobs unveils the iPhone 4 at WWDC (photos)
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