Open source development has brought a lot of advantages to desktop 3D printing. Is our flirtation with open source a youthful indiscretion that will soon be discarded? Or is open source the key to our recent past and to unlocking the future of 3D printing? We take a close look at several of the pros and cons of open source vs. closed source 3D printing at 3DPrint.com: http://3dprint.com/171554/open-source-or-closed-source/