Just as with most Windows Phone applications, you typically add value to a Windows 8 application when caching data. You gain some offline ability as well as a quick and snappy application that doesn't need to go online and download data all the time.

In Reseguiden's application we are not actually saving any data in our cache. This is because all data really need to be fresh so we really can't cache it any longer than the application runs. But we do save previous searches (only the query, not the result) that makes it possibly for users to flip through previous searches in a pivot even in the application is restarted.

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