Nexus 4 smartphone comes with a bunch of Android widgets you can add to one of the screens. Let me show you how to add a widget to a screen and how to customize it.
Let's install a YouTube download extension that will enable you to download YouTube movies. You will also learn how to install a Google Chrome extension that isn't in the Google Chrome store.
The new iOS 7 comes with an interesting moving background motion or a so called Parallax Effect when you physically move your device about. Let me show you how to turn it off to improve battery life.