No, it is paid-for DLC.
It is daedric armour!
It costs £12.99
Dawnguard is basically an expansion pack for skyrim. like all expansion packs, it requires the base game to play. So on a PC (and any other gaming device) you need skyrim first and then you can install dawnguard.
Skyrim for Pimps - 2011 Dawnguard Begins 3-1 was released on: USA: 1 August 2012
Skyrim DLC for PC is out as of 8/2/2012 in the Steam Store.
February 26th 2013.
By purchasing it and installing. Different consoles have different methods.
Dawnguard is the expansion that adds the werewolf perk tree, without that, you can't get werewolf perks.
Yes, its downloadable content for the full game.
The disk version is already out.
There are 13 perks in total.