Howtogeek posted a tutorial about backup and copy data between iOS devices

Although iTunes usually does a good enough job backing up your data, the backups are encrypted and inaccessible save for totally restoring your system. What if you want to copy your saved games to a new device? Read on to find out how.
When it comes to backing up your entire iOS device, iTunes does a pretty decent job and should your device be lost, stolen, or destroyed you'll be happy to have those backups as a restoration point. When it comes to selective backup and restore, however, iTunes isn't so hot. Further more it doesn't always effectively back up 3rd party data. If you've spent a lot of time customizing a third party application or you really want to make sure that your Angry Birds run with 3-stars on every level is secure, we'll show you how.

  How To Backup and Copy Data Between iOS Devices