No, Pokemon Black 2 and Pokemon White 2 will be available for both the Nintendo DS and Nintendo 3DS.
No, Pokemon Black and White are compatible with all versions of Nintendo's DS line.
No. I have a DSi and I play it. But you can play it on a 3DS.
It won't, it is only a game on the Nintendo DS.
No Nintendo ownes the rights to Pokemon so it will only ever be on the nds.
No it is only for diamond and pearl :( I do hope Nintendo updates it to Black and White
NO! I have a DSI and a DS Lite and I play it. You can play it with any Nintendo DS system.
Vullaby is not featured in Pokemon White, only Pokemon Black. The only way to obtain it in White is to trade it from Pokemon Black.
As of this time of writing, no. Black and White can only trade between themselves. Nintendo will probably make another Battle Revolution-type game, where you will undoubtedly be able to transfer Pokemon from B/W.
You can't get Tornadus on Pokemon White. Tornadus only appears in Pokemon Black and the only to get it is to trade it from Pokemon Black.
Black only: Reshiram, Tornadus White Only: Zekrom, Thundorus
Pokémon Black, White, Black 2 and White 2 are games for the Nintendo DS but they can be played on a 3DS (without the 3D effect) since it's backwards compatible with DS games.
Pokemon Black & White, Heart-Gold & Soul-Silver, Pearl & Diamond are all compatible with the Nintendo DS, DS Lite, DSi, and possibly for the DS XL and 3DS.