alt Hacker News> As an occasional "pinch to zoom that thing centered on my fingers, and adjust it to show what I want to someone 10 feet away" tool: it's fantastic. I could learn the key combo, but "use two fingers" is dramatically easier to remember and control.
Perhaps, but on a Mac you can already do this via the touch pad.
Linux and Windows touchpad hardware and software is significantly more widely varying, usually ranging from "good lord, did any human ever try this?" to "I hate it but it's usually functional", with only a few outliers in the "this does what I expect" realms. Touch screens on the other hand have a 1:1 mapping for everything, and very nearly all of them support 5+ fingers (not just 1 or 2), so they almost always work like you expect. (... when they work at all on Linux)