kkleiner writes "Selling products whose design anyone can access, edit, or use on their own is pretty crazy. It's also good business. At the annual hacker conference Foo Camp East this year, Phillip Torrone and Limor Fried from Adafruit Industries gave a rapid fire five-minute presentation on thirteen companies with million+ dollar revenues from open source hardware. The thirteen add up to $50 million this year. While this business model is counter-intuitive for those accustomed to our current patent- and copyright-encrusted system, Torrone and Fried estimate that the industry will reach a billion dollars by 2015."