I'm not sure those are examples of entrepreneurship as much as ruthless competitiveness. At least one of those defeats was proven to be done illegally. They're all over a decade old.

You ask Google, Apple, and Ubuntu whether Microsoft scares them.

I think he was being facetious.

I actually was not. Whether or not you approve of MSFT's tactics, you really can't accuse them of not being able to respond to market challenges. Google may not be scared of them, but I would personally rather take my chances against NBC (for example) than go head to head with MSFT.

In that case I agree with staunch, I don't think we share the same definition of entrepreneurship.