> * Easier to tap anywhere than to click anywhere with a mouse. > * 360° scrolling with high accuracy and intuitive control over the velocity. > * Zooming with quick and intuitive gestures.

I disagree about those. "taping" lack a lot of precision a mouse has. And don't get me started on the typing experience as you can't use all your fingers and have no tactile return. Also Ctrl-F "the thing I'm looking for" anyone ?

The intuitive gestures are all but intuitive if you have never used them before. My first reflex to zoom is sure not to move diagonally 2 fingers on a picture.