Trackpad gestures, mostly. It's better on battery life too. But for development I use Chrome, I agree its dev tools are better than Safari's. (And Firefox's, wh

Trackpad gestures, mostly. It's better on battery life too. But for development I use Chrome, I agree its dev tools are better than Safari's. (And Firefox's, which are really unfortunate.) EDIT: Forgot the reading mode. That one is really important.