yeah, regarding the previous posts, i think that for those with an ipod touch, it does strike out and show that it has features not possible (like a big green icon). I just was giving feedback for a possible setting for an ipod touch.
But regardless of that, the app is remarkable for how genius it is. Not only is it simple, but almost impossible for someone to reconstruct in their minds. Good work Chris and lets all make sure to give proper credit to Richard Z. With you man their probably wouldnt even be an app.