What you need:
1. Jailbrek your iPod Touch 4G ( see tutorial )
2. Download the two .plist file
3. SSH into your iPod and browse to :
- System>Library>CoreServices>SpringBoard.app> and copy N81AP.plist overwriting the existing one. I suggest you back up the original one first.
- System>Library>PrivateFrameworks>Celestial.framework>N81> and copy AVCapture.plist overwriting the existing one. I suggest you back up the original one first
4. Reboot your iPod Touch