A utilitarianist would probably take the side of Judge Posner. Weighing the well-being of everyone equally, There is no benefit to anyone's life in the decision of this lawsuit. Legitimate arguments are one thing, but Apple was looking for a "cash grab", a way to slow down google in a ridiculous way. So the ruling really encapsulates the utilitarian ethics model. Everyone goes on about their business and we all benefit from the choice of using an Apple product or not.