Re: LED for windows phones
First: The display of Windows Phones come on to display notifications if you pick up the phone and hold it up. I'm not talking about the Glance screen, it's just a basic feature that as far as I know has been on every Windows Phone for a long time. It might not light up immediately, but if you pick it up right after receiving a notification it will.
Second: No one has any solid confirmation that the Lumia 730 really does have an LED notification light and besides, Microsoft isn't going to add that kind of functionality for the benefit of one phone that hasn't sold all that well.