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From ExtremeTech:
 Lately, it seems like you
can't click on a handful of links on the internet without running into
some kind of prototype invisibility cloak. Though this device can now be
added to that list, it's more like a cube than a cloak, and something
out of the ordinary - even for a notion that is as abnormal as becoming
invisibile.
Invisibility cloaks seem to run rampant nowadays,
but even though they're "common," none of them are like what you see in
the movies. There isn't a thin sheet of fabric that you can toss over
your head and then completely disappear, with your arm becoming visible
when you reach out from under the cloak to grab something. Recently, at
TED2013 in Long Beach, California, assistant professor of physics at
Singapore's Nanyang Technological University, Baile Zhang, showed off a little device
that has the same outcome of an invisibility cloak, but isn't a cloak
in the least. The device is a little cube, only a few inches in height,
but ably performs its function. Zhang seems to be using the term "cloak"
not to refer to the garb, but the action.
Read the whole article and watch the video
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