iOS & Android - SharePoint Document Libraries
iOS and Android should be able to browse/search all SharePoint Document Libraries. They should also be able to view recent items. I see Delve possibly colliding with some of this functionally, but I think OneDrive should be considered the default place in Mobile (as it is on desktop) to view relevant document libraries.
Jamie Johnson commented
4 years on this now works directly in the OneDrive app but not in the quick menus of iOS which is where you tend to be when wanting to save something! Please fix this :)