It's a Fallout Pip-Boy that's much more than a decoration. ThinkGeek really outdid themselves with this one. You'll be able to pair a smartphone (or tablet) to this bad boy and take calls, play music, and more. What's better is that screen in actually built in! You can pair your phone via bluetooth but no connection is required! There's also a neat "Cosplay mode" that makes it look as it does when you're playing the game.
It's not cheap (over $300) but in my opinion, it's well worth it if you're looking for a Pip-Boy. See it showcased in the video below!