They don't
yes
No white is too far ahead.
yes,you can battle with any Pokemon game that's for the ds/dsi/the new 3DS.
Unfortunately, in Pokemon Black and White, you cannot interact, (trade, battle etc.), with the other versions, (Platinum, Silver, Emerald etc.). only with Black and White is where you can interact.
No. Pokemon Black and White have new Pokemon that the past games' engines cannot recognize. Even if you battle with Pokemon from previous generations, they might be loaded with moves from the new generation.
in Pokemon white, black, platinum, heartgold, soulsilver, diamond, and pearl you do not need to battle anybody
yes you can on pokemon w b at the pokemon center there is a globe witch you can transfer pokemon to planim or other pokemon games as long as the pokemon game you are giving to is at the transfer room :D
No. I tried that with a teenager named Sean and it didn't work.
you cannot transfer Pokemon white or black Pokemon to Pokemon dimond, pearl, or platinum, sorry:}
After Diamond and Pearl, there's Pokemon Platinum, HeartGold and SoulSilver, Battle Revolution, My Pokemon Ranch and then Pokemon Black and White.
You can never trade Pokemon from Black to Platinum, because Generation V Pokemon do not appear in Platinum or any other game before Black and White. However, you an transfer Pokemon from Platinum to Black after you beat the game.
Yes, but obviously White/Black PKMN can't go to Platinum. But the other way around, yes. (Only if you have beaten the Pokemon League and you have gotten the National Dex.)