So the white pokemon be in Pokemon White and the black pokemon be in Pokemon Black.....
They're showing a legendary pokemon trend here that relates to the game name......
It's like they make 2 legendaries and then make game names based off of them.
Pokemon Gold - Gold-ish pokemon
Pokemon Silver - Silver pokemon
Pokemon Crystal - Blue-ish Crystally pokemon
Pokemon Ruby - Red pokemon
Pokemon Sapphire - Blue Pokemon
Pokemon Emerald - Green Pokemon
Pokemon Diamond - Pokemon with diamonds
Pokemon Pearl - Pokemon with Pearls
Pokemon Platinum - Pokemon that's platinum colored?
And now...
Pokemon Black - Black Pokemon
Pokemon White - White Pokemon that looks a tad like a Digimon I saw once