You can check here if your site meets mobile standards mine failed,oxwall does not meet the standards
http://validator.w3.org/mobile/
I tried the oxwall mobile and that failed also
Several things are taken into consideration when doing page ranks etc. Tweaks will be added in the future. But if you are serious about your social network you would be running Oxwall on a VPS server. The speed is world class.
Also Oxwall developers have significantly improved the load times of photos and on mobile it's really fast on a variety of android and apple devices.
They keep improving and rolling out fixes and innovations. So despite what the validator says it works well and continues to improve.
Just my two cents Pete
I know oxwall or working hard ,so I posted that link so they can get some idea how to make oxwall better for mobile .