This seems intriguing but is not explained clearly: here
The site invites pre-registration for the beta version, to be launched on 17 January 2013, along with short videos.
“Kubity is a new cloud based application that instantly & directly converts any design into interactional 3D automatically inside SketchUp. … SketchUp users can easily transfer and upload their design through any smartphone, tablet or any web browser and review their design any time and from any location.”