What the trial is trying to decide is whether Google is abusing its power to maintain its nearly monopolistic dominance. A monopoly alone isn't illegal. Abusing financial might to maintain one is.It seems like the fact that Google feels like it needs to pay Apple to be the default search engine proves it is not a monopoly. It might be a monopolistic practice but if Google felt like it was truly in a monopolistic position why would they pay Apple. The act of paying them a significant sum of money shows that Google needs Apple more than Apple need Google because there are other viable options.