The multitouch trackpad for me is a great way to get the eye candy of having linear animations tied to your finger movement. In a practical sense, I use linear animations in MacOS to “peek” between desktops and pages in Safari all the time. The fact of the matter is that linear animations are just far smoother, and useful than ones that snap into place from a single input trigger. I even have a trackpad for my home desktop setup and literally don’t use my traditional mouse unless I’m playing a game that doesn’t support controllers.