I'm creating a web app for twit.tv that can be found at http://www.calebprenger.com/twitwebapp/

It's coming along great, but it's not done. I have a few bugs to work out like downloading episodes for offline use. I have an iphone, and when i save the app to the home screen for a web app, it plays while i am in the app, but the moment i leave, or turn my screen off it stops playing. Chrome or Dolphin do not do this on iphone, they continue to play. Anyone have any idea why this is?