Yep, that would be me.
My idea was with joysticks though, so when you pressed them upwards, a translucent piece of your panel would light, forming an UP arrow.
The button idea would be cool too, but I didnt feel like doing that because of the finger thing... I actually considerred just lighting them all. And even though fingers would block them, you would still definately notice the effect, so its not a waste of time.