It's been almost a year since Nintendo revealed the 3DS to the world, trotted it out at E3, held proudly by a flotilla of genetically-cloned and identically-dressed ladies. Of course we knew about it long before that, but when it comes to glasses-free 3D screens seeing is believing. After that first glimpse we were left intrigued by the technology, but we wouldn't say we were exactly believers. Now, after spending about a week living with one of Nintendo's $250 consoles, working with one, gaming with one, and practicing kana with one, we've seen the light. The fancy-pants screen works, but it only does so with a lot of caveats.