The cameras in phones have improved, certainly. I'm not disputing that. All I'm saying is that expecting a DSLR quality image, whether APS-C or full frame, from a 1/2.3 sensor butts up against the laws of physics. Of course, a camera in a phone is far more available and convenient than a DSLR so there's that. Ideally, you'd have both if you valued photography.
As for the dual camera lens setup, I am unsold regarding its specific merits. Until the actual product is in hand and appropriately vetted, I will reserve judgement of any kind.