I have nothing against iPhone / Android etc users. But sometime you need to give your buddies a hard time.
Well I saw someone post an idea on CrackBerry to write an app that makes a whip + sheep sfx to razz their iPhone friends. The post was quickly deleted (probably to keep the peace and stop the trolls) but it did sound like a funny idea to use on our friends with a good sense of humour.
So, why not! Another 5 minute app . Hold the button to make a whip sound. Release it for a sheep sound. Enjoy!