How many cameras are in the Nintendo DSi?
2 cameras, one just above the screen and one on the outside, you can switch between them when taking photos.
No, you can not. But, you can ask what a DSi is like, when used properly. For example, the DSi has two cameras, and external one, and an internal one, both being VGA (0.3 Megapixel) digital cameras. The DSi is 74.9mm x 137mm wide x 18.9mm tall (When closed), which is approximately 12% shorter (2.6mm) than the Nintendo DS Lite, but slightly wider.