I don't mean to get sarcastic, but really...was that first sentence not in a large enough font for you?Microsoft has taken legal action against the person who leaked this info, which would make it appear that there's truth behind the leaks.
The only leaked info is about the newer, cheaper model. And because that directly influence sales (I bet quite some people will now NOT buy the current xbone because they'll rather wait for that version), that's certainly ground for sueing.