There were other dual screen phones other than the Axon, off the top of my head I can remember NEC Medias W and Kyocera Echo (which was the first Android dual screen phone iirc). There was also a Sony tablet with dual screens, Sony Tablet P.
Just look at how they present it. Semidark scene, no details whatsoever.
But I did see a phone with a selfie screen on the back.
That is until Apple does something similar for the iPhone, at which point we will be officially permitted to call it innovation.