Invisibility Cloaks

In GigaOM:  This topic sounds like one of those weird science things that are probably most suited to military stealth applications.  With memories of Claude Rains and The Invisible Man film.   But it turns out we had an actual R&D application that was related to packaging that utilized underlying aspects of the invisibility cloak.    This new version can even be 3D printed.   I still follow this area and will comment here from time to time.  Related in purpose: Acoustic Cloaking