It would be useful if either (or both) the presenter or the controller plugin would support the gyroscope/accelerometer embedded in the phone. - in presenter plugin: the purpose would be laser pointer emulation (so device orientation would be interpreted as absolute coordinates for the mouse pointer) - in controller plugin: both the "absolute mode" (already described) and a "relative mode" (the device orientation would only control the pointer speed, as if it was a joystick) could be interesting.
In the presenter plugin, this is currently implemented.