There's a lot of confusion about how US anti-trust law works. Leveraging a monopoly, or being a monopoly, is not illegal. The legality part is how you choose to

There's a lot of confusion about how US anti-trust law works. Leveraging a monopoly, or being a monopoly, is not illegal. The legality part is how you choose to leverage it. It would be illegal if Apple bought Creative and ceased production of Creative's MP3 players It would be illegal if Apple refused to reach an agreement with a record label to sell music via iTunes because the record label also sold music on a competing service. It would be illegal for Apple to code iTunes to look for its competitors software and uninstall them. It would be illegal if Apple reached a deal with Microsoft and Creative to not price any MP3 player under $100. From a legal standpoint the illegal behavior has to be provable. What really got Microsoft in trouble was the assortment of documents & memos outlining their anti-competitive strategies more so than the acts themselves.