Video: What secrets does the Fallout 4 reveal trailer hold?

Fallout 4 was officially announced by Bethesda yesterday and, like most of the internet, I was rather excited by the trailer. There's a dog. What more do we need, really?

Anyway, in all the hubbub it's easy to overlook a couple of little bits and pieces in the reveal trailer, so I did some digging online and rounded up the more interesting theories and hidden clues for your edification. Just what is up with Vault 111? Where on the timeline are we? And could the game feature an in-depth crafting mechanic?

Got a theory of your own? Something I missed? Leave a comment and let me know. I'll be just over here, listening to The Ink Spots.