[andrewfong]

I don't know how common these use cases are, but I find touch support useful while doing some web dev stuff. For instance, in Chrome, pinch to zoom is more precise than ctrl-scroll / ctrl-+. It preserves the existing screen dimensions (ctrl-scroll / ctrl-+ makes the actual font size larger and alters dimensions).

I'm not so vision impaired that I need to do this on a day-to-day basis, but it's great for zooming in to see if I need to adjust a CSS border by 1px or something.

I haven't tested this thoroughly but I believe Chrome also supports the same set of touch events it does on Android. So if you want to make sure the mobile version of your site is touch-friendly, having a touch screen is less clunky than trying to emulate it with a mouse.