I can’t help myself when I see an article about invisibility cloaks. I realize we are far from a true cloaking device seen in movies and books, but the possibility that some day something of the sort may exist intrigues me very much. As this article notes a large step towards that is going to be the ability of a material to effectively manipulate light in the visible spectrum. This specific example can do that only on a microscopic scale in 2 directions, but you have to start somewhere.

http://www.sciencenews.org/view/generic/id/333004/title/Now%2C_an_
invisibility_cloak_you_can_see