Ok, I'll bite: it occured to me earlier today that it might be cool to be able to have the keyboard of my new MBP pulse gently. Nothing too rapid, just a nice up/down. I've managed to find hacks for using the backlight as part of the iTunes visualizer, as well as a hack for using it to show the GPU load. But nothing that simply tweaks it. Anybody know where I could find such a thing? Thanks!