It depends
many many games
yes they can
It's out right now
Well, that is one simple question, you see it depends on the games you buy and the games you buy from the Nintendo DSI Shop too. There are some Nintendo DSI XL Systems that have pre-installed features too. It might include 1 or 2 games.
it comes out 5 march in the UK i think
It all depends on how much your trade-in games come to! If they do not reach the right price you will have to pay extra on top of the price that the games came to!
take it back. all dsixl's should come with flipnote studio. that u can do or you can just download off the Nintendo shop on the ds it is free so no biggy
the ds i XL comes in brown and red
well you cant really compare because the dsixl is a older and have older games than the 3DS and the 3DS is in 3D and have much better graphics.
Probably not.
you have to connect it to the internet
Nope, you can play the Gba games on DS Lite but not Dsi xl.