You know you want them. Everyone needs them. They make the world go round! Indeed, theres nothing better than a nice set of Knock Knock jokes! Whos there? Khan. Khan who? Khan you believe what a cool app this is? Create your own Knock Knock Video Skits! Select from dozens of quality Text-To-Speech voices and create your script. Touch ACTION and your video and audio files will be created. Share them via email and twitter and even use the audio files as ringtones! Just use the same unique ID you entered when you first ran the app, when you visit www.SkitKit.com. For Ringtones, the iPhone requires that all ringtones must be installed using iTunes on your Mac or PC.