How to add texture packs in Minecraft PE
Minecraft PE (for obvious reasons)
iFile or something to get into an iPods files
A Minecraft PE texture pack
How to add the texture pack: Download the texture pack ( if it isn't for pocket edition the arrow controls will dissapear)
Navigate to /var/mobile/applications/MinecraftPE/MinecraftPE/ now that your there transfer all IMAGE files there if it asks you to replace the files say yes then reboot open the app and enjoy!