You've probably seen plenty of Google's stock Android L interface by now, but custom interfaces are another story. What will the OS look like when device makers get hold of it? If SamMobile's experience with an early, leaked version of Samsung's TouchWiz software is any indication, it will be... remarkably familiar. At least on the Galaxy S5, it looks like the current front-end with splashes of Google's Material Design philosophy thrown in. Core apps and notifications are now full of card-like, colorful elements, but the home screen, app tray and many other elements resemble what you've seen on existing Samsung hardware.