I would like to caution people against using any polishing products on their touchscreens without knowing exactly what the screen is made of!

Many touchscreens have a special layer on top that makes using a stylus more comfortable, sometimes even mimicking the feel of paper (like the Newtons of yore). Polishing away scratches effectively means taking that coating off your screen.

Even worse, some touchscreens have the digitiser very close to the surface and it is not unthinkable to polish it away.

Which would turn your touchscreen into -- well, a "screen".