It seems that to some extent this article is a response to obvious trolls: anyone who seriously makes the generalized claim that open source cannot innovate is

It seems that to some extent this article is a response to obvious trolls: anyone who seriously makes the generalized claim that open source cannot innovate is either a fool or a troll. Its quite easy to come up with cases where open source has innovated, and just as easy to come up with those where it hasn't. Of course, in our anecdote-happy blogosphere, people are often willing to use examples of the latter as proof of a ridiculously over-expansive generality. The real answer isn't that "open source innovates" or "closed source innovates": rather, people innovate.