KFCaffCon
KFCaffCon iOS is the iOS counterpart for KFCaffCon for OSX.
http://itunes.apple.com/us/app/kfcaffcon/id524983750?ls=1&mt=12
Play and manage the converted sounds directly on your device. Test sound loops by setting a repeat interval (or annoy people with that). Or just use it as a sound board (this is what we do most of the time, and its a lot of fun).
Please Note: KFCaffCon for OSX is required to receive files.