New Stealth Ship with M-Hull, Stiletto

I saw this on yet another Discovery Science Channel show. Over at Gizmodo, they describe this stealth ship technology and provide link to more a detailed article. "US Defense Department Finds New Way to Quickly and Quietly Kill People". The detailed article is posted that GizMag site, "Stiletto Experimental ship with carbon fiber M-hull design tops 50 knots (60mph)".