The explosion of 3D is awfully annoying, especially when it's implemented poorly or in places where it's completely unnecessary.  When Nintendo took the stage during this year's Electronics Entertainment Expo (E3), it blew minds.  As early impressions began to pour onto the web it was clear Nintendo exceeded the relatively conservative expectations of the many, many skeptics.  But how do they manage to conjure up 3D viewing without the pesky glasses we've come to hate?  The concept is simple but the technology seems anything but.  Jeff Grubb of Kombo will walk you through it.