iPhone App sparks off YouTube sensation

A new iPhone craze could be able to spread across Youtube thanks to Ustwo's 59p app MouthOff. It's a basic but entertaining piece of software that picks up sound from the iPhone's mic and synchronises it with a number of animated mouths that you can select from within the application.

It's currently at number 11 on the App Store, suggesting both that it's being downloaded thousands of times and that we've got a great many more MouthOff Youtube videos to look forward to- or at least to endure.

The most popular Mouth Offs on YouTube still only have a few thousand hits and most the videos posted are from the game's developer, but if this odd little craze sparks off into the mainstream, you can expect those figures to rise exponentially in no time.

MouthOff has already had mainstream news coverage as it was featured on BBC's Something for the Weekend recently. It's a brief clip, but the way that the presenter can't resist grabbing it and having a go shows what a weirdly contagious 'MouthOff BBC2' into Youtube.

Instead of showing you the unspectacular TV spot here though, we thought we'd gather together a few of our favourite MouthOff clips. A lot of the ones on Youtube are either promotional examples from the publisher or, frankly, quite embarassing. We have managed to find a couple that raise a smile though.

...plus a spot of baby torture