Was just wondering if there was a music app that would react to the music that you are playing and create a visual (kinda like the Spawn Illuminati app, except it reacts to music). - Also, I think there is an application for mac as a part of iTunes or something that does this, but don't know if there is an iPod Touch app that does it. I think there are some that react to surrounding sounds (like if I were to play the music from the speakers), but I don't think they work when the headphones are in. Thanks for any help! Also, Is there an iPad version, or a universal app?