Facebook Still Risks Having To Reveal Its Entire Source Code
techcrunch.com
techcrunch.com
That is to say, this seems largely like a non-issue / non-story.
... do they really want to see that code?
What makes Facebook so effective is its existing userbase, its cutting-edge design, and its constant push for usability. I still haven't seen a company that would stand a chance against Facebook in those categories, and Facebook's tricks there are open for all to see.