Here's a gameplay montage of the 3DS's biggest launch window games, fresh from Nintendo's media summit today. There are clips of Resident Evil Revelations and The Mercenaries, Mario Kart 3DS, Super Street Fighter IV, Dead or Alive Dimensions, and both the Starfox 64 and Zelda Ocarina of Time remakes, just to name a few. If you want to get an idea of the 3DS's graphical capabilities then this video is definitely worth a look. It's good to know the 3DS will have a very healthy core lineup at launch.
Back when the original DS came out it took developers a year or so to figure it out, but luckily we got a good library that saved the DS from mediocrity, at least once devs wrapped their heads around the whole dual screens concept. The Wii had some decent launch games, but the avalanche of accompanying and continuing shovelware sent it into a tailspin that it never really recovered from. Kudos to Nintendo for recognizing this problem, and hopefully preventing it on the 3DS by securing a ton of strong 3rd party support in addition to a powerful 1st party launch lineup.
