Color inspiration strikes in the weirdest places. One moment you're enjoying brunch, and the next you realize the lady in the next booth has a handbag exactly the right shade of orange/red for your bathroom walls. Previously your only option would have been to attempt a surreptitious cell phone photo, but with this cool new toy you can actually take color samples from anything you encounter in the world.
The Nix Color Sensor is basically Photoshop's eyedropper tool in real life. All you do is touch it to any object, and it will instantly give you that object's exact color in RGB, CMYK, HTML, Lab, and even specific paint colors from different brands.
Given the way colors on monitors and cell phone pictures can vary, this tool seems like it would be extremely useful for anybody working on color-sensitive projects with people in different cities. There would be no more, "Can you send a picture in a different light? I think there's a shadow."
Also, frankly it just seems fun. I'd be taking color samples of everything in my house. (Is my neighbor's dog really black, or just a very dark brown? Suddenly I am very interested in finding out.) Also, I find myself curious about the usefulness of this tool for matching makeup colors. Picking a shade of foundation seems like it would be much easier if I knew exactly what RGB code most of my face is. And if that doesn't work, I could at least use it to find better duplicates of my favorite nail polish colors.