I am literally boggled by where this technology can go.  It is so complex and far reaching that I just don't have much of a comprehension of what it can be.  

The coolest 3d print item I have seen is using concrete to build houses.  A long arm and a concrete pump and you have a concrete house up in less than 12 hours.  Of course it's exactly the same as the one next to it, but it looks to be cheap and effective at this point.

Thanks for a really good look at the 3d world.