This may not be the first app to show some LED goodness but the LEDit can be very powerful. Why, you can customize your message for other persons to see.

The app is a simple LED screen ticker emulator that makes it easy for an iPod Touch or iPhone user to relay a message to someone in both quite and noisy environments. Just type your message and flash the iPhone. I’m reminded of many similar gadgets like the USB LED fan. I know this won’t be the last.

[Link]