It's an interesting idea, and something like it definitely needs to come with or shortly after 2.0, but I share Misteyes's concern with peripherals. Something that requires a greater variety of input from the user, such as one that makes better use of timing, multiple highly distinct actions, and accumulated or learned knowledge would be preferable. While I applaud you for fleshing out your idea and starting this discussion, I think it would become tedious while simultaneously requiring concentration.