No, you can't upload your photos from your 3DS, but you'll have to, instead, do the process via your SD card.
Yes , use LunaPic In your 3Ds .
The Nintendo DSI, DSI XL, 3DS, 3DS XL, New 3DS, New 3DS XL, and 2DS all take pictures
No.
No, the Nintendo DS does not use pictures. But you can transfer DSi pictures into the 3DS in a future update.
Go on YouTube and search it up
Each of the Nintendo 3DS's cameras captures pictures in a 640x480 resolution (about .3 megapixels).
The stamps are your pictures located in the Nintendo 3DS Camera Application. They are the ones floating around.
Not Yet as of October 6, 2011
Yes. Although you can't really 'make' videos, you can take pictures and record videos with the Nintendo 3DS
Yes, the Nintendo 3DS LL is the Japanese name for the Nintendo 3DS XL
The Nintendo 3DS is created by Nintendo from Japan, hence the name 'Nintendo' 3DS
No, as it lacks a camera. The DSi, DSi XL and 3DS do have a camera and can take pictures.