you know on recent Apple portables (up until the MB and MBP) have a little ring that lights up when the charger is connected, around the power jack. orange if it's charging, and green when it's fully charged. What I want to know, is when was this feature added? I just got a 500mhz iBook, and it's not on there, making it a PITA to look at the bottom for when the battery LEDs light up, or when the OS tells me the battery is charging.

I was thinking of adding this myself, anybody know what I would need, or would it just not be worth it?

-digital