LED Morse Code Transmitter using the new iPhone 4's LED Flash to send Morse code signals. Just type in your own message or select from a quick list of pre-defined shorthand messages and the app will automatically transmit LED flash pulses in Morse code format to your friend. There is even a settings for speed of the flash. Give it a try, it is a ton of fun and best of all, it is free! NOTE: This app requires an iPhone 4 with the LED flashlight built in. Continued use of the flash may dramatically decrease battery life.