The Future is Now for 3D Home Construction

LLoyd Alter (via FACIT) makes the case that we're much further along in using 3D printers in home construction than futurists have projected:

The 3D printed, digitally fabricated home is here and it is beautiful. It will also change the way architecture is done...While purists have complained that this is not strictly 3D printing in that it is not "additive", I respond that they are missing the point, which is that it is another way of taking computer generated designs and giving them 3D form, straight from computer to tool, and it doesn't use plastic or concrete, two materials that we are trying to use less of in green building.

Other experts debate and deconstruct his arguments in Treehugger's comments, but he includes a fascinating architectural slide show to back up his thesis.
 http://www.treehugger.com/slideshows/modular-design/facher's commentsit-takes-digitally-fabricated-house-next-level/