This is a fun little app I just made. Cheaper than pair of glow sticks. Click here to download Rave Light from iTunes

This App uses the built-in accelerometer's x, y, z values to make r, g, b combinations.

I perceived on the App Store the emergence of an inside joke in the form of the "Flash Light app." One of the launch apps was a "flash light" that simply was a white screen. Thereafter I saw a bunch of other "light" apps appear on the scene, with a lot of comments ranging from "WTF" to "LOL." So I thought I'd throw my hat into the ring.