Nokia :: Better Use Of Breathing Lights

I have no idea what the appropriate place is to suggest new features. I would suggest a better use of the breathing lights on the 5800 (and I guess any touch screen device). When the battery is low, all you get is a very fast light up of the display, so if you're not looking you would not know that the battery is getting low. Couldn't the red (hang up) light be used for this purpose? When the battery gets low, it slowly pulses. It would drain the battery less than lighting up the whole screen, and you would know without unlocking the phone.