soon
There are 300 Pokemon in the Pokemon Black 2 and White 2 Unova Pokedex.
The National Pokedex of Black or White.
There are 649 pokemon.
The 3D Pokedex is completely free.
649 [including Pokemon black and white]
When you get the national pokedex. You get the national pokedex by beating the elite four.
Because you don't have the pokemon in the pokedex
You can trade the DS Pokemon games onto Pokemon Black and White when you have the national pokedex and have found sort of the pal park in black and white.
Yes, Pokemon Black and White, Pokedex 3D (Though, not really a game, but a helpful application where it helps the players on specific details on a Pokemon in Pokemon Black and White. Soon later was upgraded to Pokedex 3D Pro in November 8th, 2012.), and Pokemon Rumble Blast were all released to the DS/3DS in 2011.
Yes but only when you have the National Pokedex.
Yes in the upcomming games : Black and White
Black and White are separate and you need whole new game,you won't loose your pokedex but when you play the other game it won't show up