Noting that forthcoming issues of Nature and Science will report recent laboratory successes, the London Times writes that invisible products based on metamaterial science are a little closer to reality.
According to Wikipedia, metamaterials gain their properties from their molecular structures rather than directly from their composition, as in textiles. London Times:
[University of California Berkeley's] Xiang Zhang, the leader of the researchers, said: 'In the case of invisibility cloaks or shields, the material would need to curve light waves completely around the object like a river flowing around a rock.' An observer looking at the cloaked object would then see light from behind it – making it seem to disappear.
Expressing doubt that the research will result in practical applications anytime soon, Popular Mechanics reaches for the reference any young boy who ever frequented the back pages of the Marvel universe will get.