Not only is the front glass face tempered, which makes it more durable and suitable for public use, but it is also plasma treated to give it an oleophobic coating. What this means is that it is more resistant to surface oil and moisture which reduces the residue left my fingerprints. It also lowers the surface tension and friction, making touch gestures much smoother, improving the overall tactile experience for the user. All this is achieved without having an etched finish which means that the overall optical clarity is maintained to the maximum level.
Having up to 10 touch points allows for a wider variety of applications than ever before. This kind of functionality allows you to manipulate images, zoom in an out as well as perform many other touch gestures; much like you would with a domestic tablet. It also allows for multiple users interacting with the screen at one time.