The image above was shot by Jason Mullins with his iPhone 4 on a flight from London to Guernsey. The weird black lines you can see are actually distorted, disconnected copies of the propeller blades, but this isn't a Photoshop hack; this was how the image came out of the phone.
Virtually all consumer grade digital cameras, including cell phones, do not take the picture instantly when you push the shutter button. Instead, they quickly scan over the CCD sensor from the top left to the bottom right, like the electron beam in an old CRT television. This is called rolling shutter capture. This s
