This new iPhone app may well be called the crowd control software, especially if you have a rowdy crowd who just will not listen. The app is the Sound Grenade which incidentally became a hit when it was downloaded over 2 million times.

Sound Grenade from High Gloss Software is one of the most annoying apps that can serve a purpose. It has a very annoying sound that can give anyone a headache if they are not careful. This app became the number one app when it was released at the Android Marketplace.

The brand new Sound Grenade website gives users the opportunity to annoy their friends by sharing the website with them through email, facebook, twitter, bebo or myspace, without having to take the full blast themselves. Users get a chance to share the Sound Grenade experience with anyone, making the famous Sound Grenade frequency only a click away.

(Source) 7th Space