Here's the video's description: "This brand new gameplay video narrated by Eidos Montreal's Mary DeMarle (Narrative Game Designer) describes how lead character Adam Jensen is able to infiltrate an enemy compound at the start of the game in multiple different ways."
Deus Ex: Human Revolution is going to be a multi-platform release; it's shipping on Windows, PlayStation 3, Xbox 360, and OnLive. After a big delay, the game is finally slated to arrive in North America on August 23, 2011, in Australia on August 25, 2011, and in Europe on August 26, 2011.
Personally, the video is not enough and I'm going to have to play a demo before making a final judgment. What do you think of the above video; does it make you want to buy the game?