I'm going to be watching that trailer every single day until the game is released. That was the single most amazing thing I've ever watched in my life. GTA:SA did this to me in 2004, but this seems so much better!
Many thanks to Cpt Slaugh7er (xboxachievements.com) for the signature!
R.I.P. to the most wonderful person to have ever lived; my Nanna. 03/11/1932 - 06/10/2013. You will be forever remembered, and forever missed. I love you so much.