Well, here is a nice April Fools video. Two of the most popular stealth games, one released (Assassin's Creed), and one we are still anxiously waiting for (Metal Gear Solid 4: Guns of the Patriots), combined in one. The video starts with Jade Raymond, leading into some Snake-Altair-ish thing, and a special guest appears at the end. Enjoy!
[Metal Gear Solid + Assassin's Creed: the video]