iPod Touch 4G, iPhone 4S, iPad Logos by iTaY and Ran Avni.
to use The Logos follow this steps Install Apple Device Logo for Zeppelin > go to setting app > Zeppelin > theme > and choose iPod Touch 4 or iPhone 4/4S or iPad 2 Carriers Logo.
Requires Zeppelin, it will be installed automatically.
To change go in the Settings app -> Zeppelin -> Theme