I downloaded this, after hearing that it could help battery life. I have a question, though!

Does it help with the incredible? Can anyone state that it really does help?

Also, I noticed that the icon for it in the notification bar turns red when I put my phone into hold and then turn the screen back on, and it only turns green again after exiting the lock screen and getting into the homescreen. Is this normal or are there settings I should play around with to keep it green?