Move an object being displayed on render texture in 4.6?

Does anyone know how to do something like this (fast forward to 1:33), in ugui?- YouTube
I know its using render to texture, but how do you do multi touch pinch and drag of an object only on the render texture in 4.6 ugui for multi users?

Nothing magical going on there. Just accept touch input in the area of the Render Texture (as drawn by the main-camera), and drive the camera-rendering-that-texture using that input.