Pokemon Black and white isn't going to be on the 3DS, it's actually a DS game
the 3DS has a stereoscopic screen so it's projects images on different screens giving the illusion you are watching a 3D movie without wearing the glasses
I have a ds and the only thing I'll say is that nintendo should work on improving it's games, graphics, and an easier control. Otherwise, I believe that the psp having achieved this a long time ago, is worth buying over any other ds that just tries to astonish its players for a whole lot of bucks and cheap fun.
What Nintendo revealed about the 3DS at the E3 recently is awesome! Analogue Stick, 3D graphics, gyroscope, infrared Wi-Fi access, 3D cameras(!), bigger display...and they announced awesome games for it as well! Seriously, I just hope that it won't be too expensive and that the games will be as cool as they seem!
I've heard of the 3DS and I have to admit that it looks really amazing. But looking at my DSi collecting dust on my desk reminds me that I will probably play with it for a month at the most. Especially after how long I had to save to get the DS Lite and the DSi. I probably won't get it.
the 3DS is an amazing achievement in technology, but ask yourself this: "Wasn't the wii too? The wii that everyone hates?" I mean, it looks cool, but it's gonna be a piece of garbage for how much it's gonna be.