Interesting Android app developed by Sam Bernaerdt
'The Rhino Grasshopper Controller sends all the sensor information from your device directly to Grasshopper. From there you can do with it whatever you want and control your geometry with gravity, rotation, light or touch input...
It sends all that data via Wifi to your network and uses the gHowl plugin to read it back in.'
Link to 'Rhino Grasshopper Controller' Android app