I'm still waiting for a circuit box type thing where you can program using redstone in a crafting table kind of menu and when you place it all you need is the input and output.
Hell I'd love it if by using the same idea you can make it so a circuit would only activate, say, a door, rather than everything on that same circuit unless otherwise programmed. Same thing for inputs. Levers would activate, but not pressure plates or torches.
But I don't use redstone all that much to really care about what happens to it.