You can have a blinking light when a message comes in
Is the flash that lights when a message comes in, if you activate the feature in accessibility. Although I use it, is never been a replacement for a BB or samsung notification led, which just blinks, when you have network connection, or changes color if you received a new message.
Now, having said that, I can tell that I lived with more stress when I had a BB. I just glanced to the BB case from time to time, and if the LED was blinking red (instead of green), I felt an urge to check the message.
Sincerely, I prefer not to have that feature.
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I've always wished the white square on the home button would "breathe" the way the power LED on MacBooks used to.
Now, THAT is a cool detail I'd love to have.