But it is there, you were implying they don't have one at all.
I'm saying that the notification light isn't useful because of the placement and the way it functions. When I had this enabled on my iPhone 4s, it would blink a single time when the notification was received, and that was it. On my HTC One, it blinks continuously until I turn the screen on.
Then, I'll get into the fact that different colors can indicate different types of notifications. The iPhone can't do that with the white LED, maybe it'll be an option on the 5s.
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I'm not getting into this again - whenever I do, the conversation always ends with my example scenario and no counter argument.
I see ZERO point in a notification light and in fact, find it a detriment when I'm trying to sleep and this little light is flashing.
Kudos to people who like them. That's great. Just sharing my opinion.
I have the option to set a "Quiet time" on my device, and a separate check-box that disables the LED notification light during that quiet time. My phone doesn't blink or make a peep between 10pm and 6am.
OR!
I have the choice to disable the notification light and simply not use it at all.
I'm just saying that the option for a useful, thoughtfully placed notification light is one of the things I think Android does better.