Lock Screen 2 is an app that allows your Mac to use iOS' lock screen. If you have never held an iOS device in your hands, let me explain. iOS devices like the iPod Touch, iPad, and iPhone let you lock your screen, which works like locking your Mac. Instead of clicking on your user name when you want to unlock it, you simply swipe your finger on the screen and the device is unlocked. Well, Lock Screen 2 makes it possible for you to lock your Mac and have a similar window that you can use to unlock it when you get back. It also gives you quite a few different options to unlock it and some ways to password-protect your Mac.
To lock your screen, you can simply use the hotkey combination Command + L. You can set the app to let you unlock your Mac using your Mac's keyboard by pressing a combination of keys one after the other, or you can use a passphrase that also works with your keyboard. It doesn't work exactly like a password, though. The password has to be a combination of letters that can be entered in a swipe-like motion. In the experimental category on the Preferences window, you can activate a feature that lets you unlock your Mac using your Trackpad.
All in all, this is a nice proof of concept. It lets you mimic the behavior of iOS on your Mac. I still am not convinced the Mac should turn into iOS, though. But other users might not feel the same and could really appreciate what Lock Screen 2 does for them.