yes, the true boost of vr will come when there will be some really high-performance apps that will quickly turn the vr on smartphones that almost everyone owns i think at the moment only a few of us want to invest on vr gear
I agree. The devices must be as small as a smartphone and maybe be able to create holographs or something similar. We are a couple of years away from that though.
I dont think that the breakthrough comes with holographic devices, its more likely that there are cheap headsets with or without a smartphone inside, that will initiate the VR era.