Light Flow app has been Updated to Version 3.0 and has Been Majorly over hauled all the Way around this app screams Cool all the Way..
The best way to explain it any more is Take a Look Here Via this Link: Or go to the Play Store an Download it an do a Test Run for your self.. Enjoy b33
I've used this before. I liked it on my OG Droid because you could set it so that when it was charging, the LED would light up red. It hasn't worked on subsequent versions of Android 2.2 or 2.3, but I'll give it another try! Thanks for the info B33!