What is the purpose of this setting? My dad and I were trying to figure out who this makes the iPhone more "accessible" to. Maybe color blind people? The screen capture function wont show the color of the screen but it makes it black and orangeish. Then the springboard becomes white not back, and everything is funky colors, including apps and website. The whole phone gets colored a different way. I tried searching "white on black" but everything that came up was some kid asking everyone what color iPhone he should get. In any event, it looks cool and worth looking at, but does anyone know its function? EDIT: Yes, I have a 3Gs. The signal in my office sucks really badly, so I'm on Edge.