Do you think the iPhone 5 should have a notification LED?

After moving from an iPhone to an Android phone, one of the things I like most is having a dedicated front-facing notification LED. It sounds small, and I suppose it is, but it's nice to look at my phone and know, at a glance, if I've missed anything important, even if the phone is on vibrate or silent.

Would you welcome the addition of a notification LED to the iPhone? Or do you think it's unnecessarily?