This is silly, this makes it look like all open source or alternatives projects were made to attack Microsoft, or vice-versa. Development of new solutions/alternatives is not always against something existing. It could be to serve other purposes, other markets, other clients/users. This is not a zero-sum game.
It's almost as if it was meant as a joke.
Title is fail. For some reason I don't think iPods or Gmail count as FOSS... among many others on that list.