DemoApp is that mystery application that coexists in the iPhone’s Applications folder along with all the standard apps like Google Maps, Calculator, Stocks, and so forth. We’ve known for a while that it had something to do with movies but until today, we weren’t sure what it did. Today, I can confirm that it does what most people have suspected: it plays a single movie over and over in a repeat loop. It does not, as others hoped, allow you to play video out through your dock. Here’s the down and dirty on DemoApp.

via How I got DemoApp to Work on the iPhone.

Ssh! It’s a secret! 😉