Class Action Complaint Against Apple concerning iPhone

Here the text of the complaint. The facts can be briefly reckoned as follows: - AT&T is the exclusive provider for iPhone cell phone service in the United States; - the duration of the exclusive agreement is to be five years; - Apple is to receive a portion of AT&T’s profit; - iPhone consumers are to be prohibited from using a cell phone carrier other than AT&T; - Apple is to be restrained for a period of time from developing a version of the iPhone for CDMA wireless networks.
As far as competition law is concerned, the facts invest the tying doctrine. In this case, the tying product is the iPhone, whereas the tied product is AT&T's cell phone service.One of the central questions would be: Has Apple sufficient economic power in the tying market to coerce the purchase of the tied product?