When Google releases a 6DOF standalone or mobile Daydream they will port all of their desktop PC VR apps to mobile. We're close to this, as the standalone Daydream hardware (mobile Vive) has 6DOF inside out headtracking, even though it lacks a 6DOF controller required for all VR content creation apps. For now, mobile devices don't have the input and tracking capabilities to provide a good modeling experience.