Is it a coincidence that the Nintendo 3DS' GPU is called the "PICA200" (i.e.: 'Pikachu-hundred')?
it was either an American Nvidia model or a Japanese DMP.
A high res camera wasn't needed, nor were the programmable shaders that Tegra 2 offered -- Nintendo decided to go with the chip that ran cooler, longer, was produced with a local IP, and came with tessellation for almost-free.