They have been saying this for a loooong time... but not it seems e-ink might finally make it happen, before they were trying to bend light, and use lcd type technology to project the image behind something... now with e-ink they might have a real chance, assuming e-ink progresses enough to not stick out like a sore thumb as a false image.

"Invisible tanks -- and maybe invisible soldiers -- may soon be charging onto battlefields.

A British weapons manufacturer is making good on the promise of Wonder Woman's invisible jet, describing an "eCamouflage" system that uses electronic ink to disguise combat vehicles by projecting videos of the countryside onto them -- electronic squid ink of a sort.

Using highly sophisticated electronic sensors attached to a vehicle's hull, BAE Systems plans to project images of the surrounding environment back onto the outside of the vehicle -- enabling it to merge into the landscape and evade attack, explained London paper The Telegraph.

Unlike conventional forms of camouflage, the images on the hull would change in concert with the changing environment, always insuring that the vehicle remains disguised." See the rest HERE