DOD and Open Source

Along the lines of standardization, I thought that this article from SDtimes.com was pretty interesting. So much software development is either opensourced or crowdsourced that it seems essentially inevitable to me that the products will make their way, or have already made their way, into governmental or defense use. I actually think it's fairly forward-thinking of the DOD to issue a memo like this investigating the strengths and weaknesses of open source development.

I wonder if these trends will make their ways into other aspects of engineering, as well. In some ways, perhaps they have. For example, much of the design process for Boeing's 787 "Dreamliner" was essentially crowdsourced, though it was done in a closed community. What would the outcome be if a geographically diverse group of people collaborated in their free time to build a bridge, or a rocket?