the cams don't have to be use to record videos, we've got camcorders for that.

The 3D input could be used for gaming purposes. Like augmented reality.
Like that ghost hunt game in Japan where you hunt for ghosts using the DSi cam.

The dual cam would allow for the 3D images.

As for memory space, that would be depending on what microSD card we are using.

true true I see the point I just don't think it's worth the cost lol not at launch anyway, then again maybe that is the 3D control they were talking about, 3D tracking of head and hands etc.

I think they will have about 1GB built in anyway but yes SD cards would need to be used for more than short clips of 3D video, not that people would use it for anything else unless the resolution was high enough for viewing on a TV, I mean how cool would it be if you could record short 3D home movies with the 3DS lol, but I doubt Nintendo would do that anyway but who knows (well obviously the god like entity that is Nintendo does) anything is possible.

If they had a 3D camera ...it could not only be used to 3D photo and Videos but also it would be like having a project natal on your pocket ...

Dear Doubters,

You were wrong.

Sincerely,
Galaki

They dont need more cameras, what they need to do is make the MP on the cameras better.

Oh, looks like I was right! XD

already 3 cams on the thing, aint that enough? lol

I disagree. I hope they don't fall for the megapixels race that adds nothing to the image quality.

I believe the 3D camera effect will be two cameras for 2 buffers. The camera facing the user will still be limited to just 1 camera. These will also be normal cheap 2d cameras for a 3d effect.