Normally I wouldn't dare log into my Gmail account from a public terminal, but this QR based login from Google is definitely a step in the right direction from a security standpoint.
As first reported by Ian Paul from PC World, you can now securely log into your Gmail account without typing your username or password into a computer.
It works by using your iPhone as the means for authentication instead, and it's a pretty slick way of staying relatively secure from would be password jackers. Video demonstration inside.