Yes,you can trade between soul silver and D/P/Pl,and yes, you can have different styles of DS.
no you can't but you can migrate in into diamond and then trade it.
Probably not.
Yes. It can trade with other soulsilver versions, heartgold, platinum, diamond and pearl.
you need to hatch a togepi in soulsilver or heartgold then trade it to pokemon diamond
trade it from soulsilver
Trade it from Diamond/Pearl/Platinum.
no but you can trade it from diamond pearl and platinum
you have to trade from diamond or pearl
You have trade it from Pearl, Diamond or Platinum.
Trade with Pokemon Platinum, Pearl, or Diamond.
You cant, you have to trade him from a Pokemon Diamond game.
yes. you can trade Pokemon from diamond, pearl, or platinum to heartgold or soulsilver.