From Turner EMEA:
Have you ever wondered what youd look like with the mouth of a Ben 10 alien? Really?! Because now its possible! Use the Omnitrix interface to select one of 10 official Ben 10 characters, hold your iPhone in front of your mouth and start to speak (or roar). The microphone picks up your voice and synchronises the mouth on the screen! Features all your favourites including Ripjaws, Diamondhead, Four Arms, Stinkfly and even Ben himself!
PLEASE NOTE: Ben 10 MouthOff is designed for the iPhone. It also works with 2nd generation iPod Touch but you MUST have headphones with a built in microphone. Ben 10 MouthOff will NOT work at all with 1st generation iPod Touch.
PLEASE ALSO NOTE: This application does not change your voice or produce sounds!