You can transfer save data to another device by taking the following steps:

1. Connect your current device to a PC and back up the app data on iTunes
2. Connect your new device to the PC and recover the backup data onto your new device.

Please contact Apple directly for detailed steps on creating backups and recovering them onto your device.

Apple Support
http://www.apple.com/support/contact

*Transfer of app data can only be done between iOS devices.
*Not following the recovery steps correctly may cause the app data to be lost, so please be very careful.