two screens . . the new future of the smartphone ?

As smartphone hardware becomes more and more powerful, there seems to be a growing need to extend the phone beyond a single screen  . . .

whether that be through Continuum on the new Lumia 950 & 950XL with an external display and keyboard . . .

or the rumour that this year may see a Samsung smartphone with a folding screen  . . .

 http://phandroid.com/2016/01/08/samsung-might-launch-its-foldable-smartphone-this-year-according-analysts 

or the new contender might just be this, a dual screen smartphone with one traditional screen an one using digital ink (which is always on, even if the battery isn't!)

http://wmpoweruser.com/microsoft-research-is-in-deep-talks-with-lumia-devices-team-to-include-secondary-displays-in-flip-covers/ 

whatever the future holds - I think some interesting innovations in smartphone screen technology could be heading our way soon !