reading A Field Guide to Fabric Design lead me to ColorID. I love color and my husband John always says I have 'perfect color' the way others have perfect pitch. And since I always have my iPhone with me this is going to be a great new app. What makes this app so usable is that you take a picture and the color is converted to readouts in CMYK, RGB, HEX, HSV and LAB values. This save me from having to import the photo and use the Digital Color Meter which only gives me RGB and then going into an Adobe product for the CMYK.
Possibly you read that and thought blah, blah, blah color. If you are a designer you know this is a very good thing.
I can't wait to try this out on my walks. And it was only $1.99. Big, cheap fun.