There is a whole ton of improvements, upgrades, and cool stuff added to this latest version in the Fallout franchise. And rather them me writing a wall of text, just watch the E3 videos. But we should make mention of the fact that yes, you can actually get a real Pipboy that interfaces with the game. Holy crap!
The Bethesda team did an unbelievable job keeping this one under their hat. They have been working on it for 4 years and it releases November 10th 2015!!