Do you remember those old iPhone apps that simply displayed a white background for you to use it as a fake flash light? With the introduction of the iPhone 4, you can use your iPhone 4 as a real flash light. There are several iPhone apps that can use the flash intended for camera as a flash light. The one I have been using is called LED Light for iPhone 4 Free. It works pretty well, and it also has a strobe light mode where you can have the light flashing. It’s a must-have in an emergency situation where you can use it to get attention.
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