About dynamic downloading resource files And SearchPaths

Since App Store only allow to modify or create files dynamically outside of .app folder, such as Documents and Library folder as AssetsManager is doing so, when we using CFileUtils::sharedFileUtils()->setSearchPaths, we should add “…/Documents/” to our SearchPaths. I have done it and test it on iOS 6, and it works fine. I just come to ask will there be any obscure problem doing this? Any suggestions ?

Any suggestion?