The iPhone is not the most open among gadgets. And it isnt easy to get your data off it. Apple has tried its best to hide any iPhone related information from the users view. And they have succeeded to an extent, atleast the primary consumers of Apples goods dont really care where (or more importantly, how) the data is stored, as long as Apple provides an application to access it.
In the iPhones case, the application is iTunes and the only way to put this data back on to the device is to use iTunes
unless you know where to look for it
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