Sure, some services can cache data locally for offline use, but that's a feature of HTML5 that has yet to be widely embraced by devs.

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The alterations include reducing the size of the cache, no longer backing the cache up on iTunes and deleting the cache entirely when Location Services is turned off.

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According to the release notes, iOS 4.3.3 reduces the size of the location database cache, stops backing the cache up to iTunes when you connect your device to a computer, and deletes the cache entirely when you turn Location Services off.

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