Anti-trust "prohibits a variety of practices that restrain trade".
I don't see how it does that, especially given that they bundle a headphone adapter with the phone.
But they are a major player in smartphone market that they use to leverage themselves into this market. Similar to Microsoft (majority in OS) bundling browsers and media players.
>But they are a major player in smartphone market that they use to leverage themselves into this market
They have less than 50% of market share, so no.
MS had almost 98% of desktop/work OS share (Linux was in its infancy then -- and is not used much for desktop even now--, and OS 8/9 had dropped to insignificant share).