The previous post's point is that they make their app's sync service as available to users as the app itself. "Forever" is the wrong word for any of this, but t

The previous post's point is that they make their app's sync service as available to users as the app itself. "Forever" is the wrong word for any of this, but the sync service will live as long as the app does. (BTW, your idea supposes the ongoing existence of storage services with a common, stable API an app can be written against. You can barely say that exists now, much less expect it to into the indefinite future. The previous poster only assumes general servers are available, including BYO if you want.)