This is not the same thing by a long shot - you cannot force a Google Play update, and that update will take hours or days to trickle down to the users. What we're talking about is that the application updates itself instantly, even WHILE RUNNING. The user needs to nothing, no "update your app" or "newer version available". I can literally add an option in the settings menu or change something in the app and it will immediately be reflected on ALL clients connected without touching the appstore.