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People used to say that, if Apple had anything near Microsoft's market dominance, then they would be just as bad in terms of anti-competitive behavior. Turns out that Apple is worse that Microsoft ever was - without having anywhere near the same level of market dominance.
Lately Apple has been taking plenty of pages from the playbook of the old Microsoft. Remember when Microsoft prevented Windows 3.1 from running on DR DOS? What Apple has done here is no different. Well, except that Microsoft only did that in a pre-release version and removed the limitation from the final release.
Maybe Apple's new motto should be "iTunes ain't done till Pre sync won't run!"