Bethesda sent word today that the Obsidian-developed Fallout: New Vegas will start radiating store shelves this fall. It's a little less nebulous than the previous "sometime in 2010," but it's still not specific enough for our tastes. No, the real draw today is the second half of Bethesda's release, the debut teaser trailer that we've put just above. No gameplay, but it's got style and Sinatra to spare. Also ... is that a Helghast? It's not, right?