If you could just make them the same size as in MS Windows 8 in the task bar. When you select them to the larger size it is perfect for using your finger. Because now on the MM task bar, the icons are so small that my small finger touches 2 at once.
Another idea is that the gesture of 2 fingers to move around the screen doesn't work with a fast enough response. It takes so long for it to happen that it is faster to just use your finger to move the slide bar instead. This could be a bit wider too to accommodate the finger instead of the mouse pointer.