I mean I guess it would be a great idea. The problem would be implementing it for the natively installed apps of the phone, if that is where the direction of this topic is to go towards.

I don't know how hard it would be to implement some sort of universal listener for notifications, without modifying native apps' code. :P (not a dev here)

Anyone wanna do a reboot of the 1.3 and modify them for dynamic icons? XD