What I meant was web apps that are added to the home screen. Previously it works just like native apps: web apps will need to store and resume its state every t

What I meant was web apps that are added to the home screen. Previously it works just like native apps: web apps will need to store and resume its state every time it launch or quit. This cause web apps without manifest file to reload itself every time it launches. In 4.0, it works just exactly like in Safari: as long as the app don't get killed from the task switcher, its state are resumed automatically.