It seems that the US Military gets all the sci-fi gear.

Researchers from the University of California Irvine have isolated a protein in squids which reflect light and ultimately make the cephalopod invisible. The protein, aptly called reflectin enables the animal to change its color depending on the protein's layering and spacing in its skin. Scientists were able to isolate the protein, then apply it to tape. The reflectin on the tape then changed which wavelengths of light it reflected; essentially making the tape invisible. Naturally, this has military applications. The most obvious use for the protein would be for soldier's camouflage, but researchers also say the the cheap to produce light altering protein tape could be used to cloak soldiers against night vision goggles in the field.