Depends on the type of app. There are many types of utility apps (say a unit converter or tip calculator) that would be perfect as a web app. With support for

Depends on the type of app. There are many types of utility apps (say a unit converter or tip calculator) that would be perfect as a web app. With support for localstorage and cache manifests, the app can be available offline as well and can even have a nice optimized icon to put on the home screen and a splash screen to show. The only drawback I currently see is that every time you load the web app it first checks with the server (for changes) before letting you interact with it.