Indeed, one of the amazing things would be if Android apps could be individually sandboxed on a Jolla (or other Linux) phone. Like each app would "think" it's running on a clean phone with absolutely nothing else on it.

So they could be completely blocked from accessing hardware I don't want them to (e.g. location) and communicating with other apps. Right now Android is way too open, every app can see what other app is on my device if I so much as need to share 1 photo.