| http://www.w3.org/ns/prov#value | - Given that book publishing margins are tight anyway, this means that publishers will have to make iOS-derived pricing noncompetitive because their own e-books will be more expensive than either Apple's (if the title is available) or than their own pricing outside of the Appleverse, or they will have to choose not to play at all on the iPhone, iPad or iPod.There is a good reason why publishers may wel
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