Apple store is the only way (legally) to get apps onto your iphone, what if a court were to rule that to be illegal? Where would that leave Sony and Nintendo who have similar online stores (PSN/eshop)?
Apple has never really ruled or ruined any market. They released mobile phones and their UI was mimicked by android and others. And things just continued. So it never really something that will be ruined by apple. At the most they will bring expensive market competitor.