Regarding Steam and allegations of antitrust/monopoly, I can see that being decided in a similar way to allegations of the NFL behaving similarly by the ill-fated AFL; that being, 'natural monopolies' occasionally arise in markets requiring high initial capital investment and can be sticky due to brand recognition. In short, they'll technically win, but will win $1 in legal costs. Natural monopolies are indeed a regrettable result of our markets, but it's rare that they've actually broken laws in the course of attaining that dominant market position.