If anyone takes a look at the source, and has any feedback, I'd welcome it. Like I said, this was my first project, and I'm just learning to program the thing, I'm open to advice and constructive criticism on my programming..
There's video of it in action, and I updated the page linked in my first post with the completed pictures, and a link to the sketch I have running on it. I had a bug in one of the modes (patterns) in the sketch I had on the Arduino when I shot the video, that's why it freezes at one point in the video. It's all better now. I love this Arduino!
I don't actually get my Arduino until Monday, but I'm ready to hit the ground running the second I do. I wired up the solid state relays and the high voltage side of things today. I have a bunch of pictures here: http://www.neonsquirt.com/arduinoxmas
It's not going to be anything crazy, no dancing to music or anything. Simply the ability to have a couple different patterns.. I'll have some video by Tuesday.
There are several ways to connect an arduino to an iPod Touch/iPhone. The latest iPod Touch and all iPhones have camera's built in, and very capable CPU's on them. You might be able to use the iPod to do the tracking, and simply drive the arduino as a slave.
I think the file is just that, Insurance.. Generally to prevent assassination, or a decade+ visit to Cuba.. Whatever is in it must be HUGELY worse than anything out there, something almost unimaginably bad. Otherwise, it'd contradict his proclaimed values about the freedom of information. Sadly, if the information in that file really is THAT bad, it's a shame it had to get distributed. Someday, it WILL get cracked. Encrypted files can ALWAYS be brute forced, eventually. Whether we have to wait for Quantum computers or just a couple more iterations of moore's law, one way or another, it'll crack, and it's as good as out there for the public already.