Not currently.
EDIT: it is possible to create videos on a software called "inchworm animation" just look it up. However it its basicly stop-motion animation and it cost 4.99 in the Nintendo eShop.
No, as it lacks a camera. The DSi, DSi XL and 3DS do have a camera and can take pictures.
It can be played on ps3 and 3ds. 3ds is diffrent than the others
DSi cannot record video, sadly. However it can take pictures and distort them in various ways. DSi XL cannot record video either, however, people believe that the Nintendo 3DS soon to come out is able to record short clips, though we cannot be sure of that yet.
No. The NDS lite cannot play 3DS games in the first place so it will not be able to link with a 3DS. However, the 3DS is backwards compatible, meaning it'll play NDS games so it can link with the DS lite if playing a NDS game.
No. 3DS games are not compatible with the DSi XL.
Yes. Although you can't really 'make' videos, you can take pictures and record videos with the Nintendo 3DS
its roumered that it will (hopefully)
no but there might be a update in July
Yes, the camera application for the 3DS can take videos and pictures - it can take pictures in 3DS too due to the two outward cameras, as well as 2D pictures of the user's face with the inside camera. However the resolution is not great, it is 0.3 Megapixels and looks grainy even on the 3DS' small screen.
you u can also take 3d videos, although it is not too clear
In November with a system update. Announced at the TGS on September 13th
Yes
Yes it does. You can even take 3D pictures and videos with the 2 outer cameras.
unfortunately, no
yes
You can download the Youtube application from the eShop if you want to watch Youtube videos, you can not watch video files such as mp4s, but if you upload them to Youtube you will be able to watch them :)
You can't :(