I recently upgraded my iPhone 3GS to iOS5 and wondered if my Audible stats such as badges and total listening time would be copied over when restored. I really like the app and hoped that I could continue to track my reading time.
The answer is: yes, but you must create a backup (or have a current backup) of your iPhone, iPad, or iTouch device first. After iOS5 is installed, you will restore your apps from the backup. All of my statistics and badges returned without any issue.
The only issue I encountered was that some (all?) of my downloaded audio files were corrupted or unavailable. In Audible’s FAQ, there is a message that some customers were receiving an error message, “Error playing title”:
This is because the storage location of downloaded audiobooks has changed in order to fulfill Apple’s iCloud requirements. To recover from this error, please go to App Settings menu, then tap “Refresh Complete Library”. Once your library has refreshed completely, please re-download the titles you were listening to and playback should work again.”
I did lose my location in my book, but everything else worked correctly.
All in all, this was a minor inconvenience compared to the rather painful upgrade itself.