I see SFOS (in relation to dalvik) as a sandbox for android apps. I can make them see no contacts and they don't (shouldn't) have access to OS.

I think that's where Jolla should apply their time, create more controls, create all those fake-feeding of contacts/location/etc.
Android on SFOS should be the best android version (privacy-wise) out there.

Too bad, they don't really push it.