VR headsets greatly benefit from a higher resolution. Even the 2K display on the late model Samsung phones produce low resolution when paired with a Gear VR. Supposedly this won't be resolved until 8k or even 16k mobile displays.
Mobile has to lead the way, which Samsung and Oculus did very successfuly with GearVR.
Cardboard was seen as a gimmick and now it has graduated to become a daydream.
This is a positive step for VR.
2016 year of VR.