yep, the first New Vegas DLC is out, Just played through it, has some fun new weapons like the Browning Automatic Rifle, a re-skinned .357 magnum and re-skinned knife that you can modify at the crafting bench (you can super heat it to glowing white hot) those are the good things, and are outweighed by the bad things, so many bad things, from difficult enemies, poor level design, the bomb collar around your neck that goes off if you get within 30 feet of a radio or speaker, enemies that will only die if you dismember them, invincible enemies, and the fact that the ending spoils the ending to the future DLC (or atleast tells you what the next one will be) and some character stuff that I will put into spoiler tags
also
you are kidnapped by the Father Elija that led the BoS at HELIOS ONE, if you talk to the companion Veronica about being in love she mentions a lesbian love, that is Father Elija's daughter, who has some horrible stuff happen to her through the DLC
also
The ending mentions "the great divide" the battle between Courier Six and Courier Five