AdAge has a long article trying to puzzle out why Apple potentially "sacrificed iTunes" in approving Spotify's streaming music app. Oddly, while the article touches on a few of the reasons, I don't think it clearly highlights what seems like the most obvious reasons: As we noted when the app was approved, Apple appears to be somewhat gunshy, following the FCC inquiry into why it "blocked" Google Voice on the iPhone (and, yes, Apple still insists it didn't actually block the app, but Google says otherwise). Given the scrutiny, Apple probably realized that it was in for some serious ...

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