Well it's not quite as awesome as it sounds, you can view the trailers in 3D but only if you download it on your 3DS.
Nintendo is giving you the chance to download seven free 3D game trailers exclusively through the Nintendo eShop, showcasing some of the latest games arriving soon for the Nintendo 3DS™. Trailers for upcoming titles, including Mario Kart 7, Super Mario 3D Land and Luigi’s Mansion 2, will be available to download from the Nintendo eShop from today for a limited time only.
The trailers showcase some of the most highly anticipated games launching on Nintendo 3DS over the next couple of months and star some of Nintendo’s most famous heroes; Mario, Luigi and Pit all making an appearance. Other game trailers available to download include Paper Mario, Mario Tennis, Kid Icarus and Animal Crossing.
The Nintendo eShop gives Nintendo 3DS owners access to a vast array of new exclusive 2D and 3D content, including a free downloads of the Pokédex™ 3D, and the ability to download original 3D software, 3D Classics, Game Boy™ and Game Boy™ Color “Virtual Console™” games and an extensive library of Nintendo DSiWare™ titles. New content is added every Thursday so make sure you check back regularly.
If you haven’t performed the recommended system update yet and want to download the new trailers, simply start the “System Settings” from the Home Menu, select “Other Settings” and scroll the page right to select “System Update.” Once updated enter the newly downloaded Nintendo eShop and download the free trailers from today.
Don’t forget that you can also play most of the 1000 Nintendo DS and Nintendo DSi games on your Nintendo 3DS, due to its backwards compatibility*. The Nintendo 3DS also features parental controls that let parents manage the content their children can access. For more information about these and other features, visit http://www.nintendo3ds.co.uk.