Best webcam app for the iphone 4s?

So I'm trying to use a newer music performance website called "Stageit"... if you haven' checked this out it's really cool. Anyway I need a webcam for the site and I have an iphone 4s so I was wondering what the best webcam app is for the iphone?

Thanks

Also what is the best attachment to hook up your iphone to a tripod? I was checking out these two:

ThinkGeek :: Glif Tripod Mount & Stand For iPhone

and

Amazon.com: F-L(G): i.Trek SUPER MOUNT F, Metal Smartphone Tripod Adapter and stand for iPhone 3/4/4S iPad 1/2 iPod Touch HTC Samsung LG Motorola Android Smartphones and tablets (Silver, Long): MP3 Players & Accessories

Reviews and suggestions are welcome.