Here is how you can hack Sly Fox to unlocked all levels on, and iPod Touch without .
How to get all levels unlocked on Sly Fox without jailbreak:\
1. Install & Run Sly Fox. Exitand close from multitask.
2. Download then Copy file ‘com.chillingo.slyfox.plist’ to var/mobile/applications/xxxx/Library/Preferences
3. Overwrite existing file.
4. Enjoy all levels unlocked on Sly Fox brought to you by James, ONLY HERE at iPlayPlus.Net
Free: Download from SlingFile