New 10-in. tablet UI
With Android 4.2, the 10-in. tablet takes on a whole new look that more closely resembles the Android phone UI, with a status bar and notifications pulldown at the top of the screen and a Favorites Tray with access to the app drawer at the bottom.
Google's goal with the change is to create a more consistent user experience across device forms. Moving from a phone or 7-in. device to a 10-in. tablet now feels seamless and natural, with practically no learning curve required.
My only gripe is that the main system navigation buttons are horizontally centered, which works fine on a phone or smaller tablet but makes the buttons tough to reach with your thumbs on a large-screen device.