If you follow the source link you will be led to a plethora of new 3dS trailers for games like the highly anticipated Monster hunter 3G (keep in mind that this version only supports local wireless) and Kingdom Hearts: Dream Drop Distance. Trailers for games like Dillon's Rolling Western are also available on Nintendo's official site.
Source: http://www.joystiq.com/2011/10/21/nintendo-direct-trailers-monster-hunter-tri-g-kingdom-hearts-3/
Source: http://www.joystiq.com/2011/10/21/nintendo-direct-trailers-monster-hunter-tri-g-kingdom-hearts-3/