3D Printing - The Next File Sharing?

[snip] the future will see file-sharing networks trade designs for (possibly copyrighted) products. Make a bedside lamp, flyswatter, pair of sandals, plastic wine glass or a coat hook, rather than buying one. The makers say that the next version will even be able to make its own electronic circuitry. Pirate Bay founder labels 3D printers "the future of sharing"