Yes..that would really helpful. But then i highly doubt we would get it because nokia is incorporating notification inside glance screen :-(
sent either from my Nokia Lumia 820 or HTC Desire HD
Yes true, although personally while i think a Notification icon on the Glance screen is helpful, it's not as noticeable as a blinking light. Or maybe, make the icon itself blink and be large enough to be easily noticed.
I don't really see why they can't do both, but you're probably right in saying that won't happen. Shame really.
Of Course, not everyone has a Nokia handset or uses Glance, so that's also another reason for a dedicated Notification light...either the Windows Flag, or an LED in future handsets, especially those that will only have software versions of the Capacitive Keys.