No, that doesn’t mean that you will have a large glass plate that you have to swipe your face across.  KeyLemon created an app that allows your web cam to simply log you in when you are in front of your computer.  It will log you into windows, social media sites, pretty much anything that requires a log in.  Since it is simply inputting your password for you, I see it as more of a convenience feature.  If you wife steals your password to that site, well, your still SoL, …