You can't yet.
You go ask someone at the store and ask to pre order Pokemon platinum.DO NOT LOSE THE BILL OR YOU CAN'T GET POKEMON PLATINUM!!!!!!!!!!!!!!!!!
You can pre-order it at gamestop, target, and wal-mart.
26 of June
It Came out here on March 22, 2009. Source: serebii.net PS: I also have it Pokemon Platinum from EB games, Moorsetown mall (the bag had gamestop, but still) (If it did not come out yet, It is still available as a Pre order (my method).). Even better! When I got it as a Pre order, I got a Giratina Origin forme Figure with Pokemon Platinum! It is still available at Toys R' Us Here!: http://www.toysrus.com/product/index.jsp?productId=3509974
The Pokemon that can use oval stone in Pokemon platinum is Happiny. It is the pre evolve form of chansey. Mostly every chansy you catch have a oval stone.
No, you don't. It has a full storyline in Platinum.
If you pre-order Pokemon Black, you get a Reshiram figure, and if you pre-order Pokemon White, you get a Zekrom figure. I heard in GAME stores in the UK you can buy special Pokemon black and white DSIs with the games.
I think when you pre order it you'll get a free figurine of zekrom.
You'll get a Ho-Oh figure if you pre-order HeartGold.You'll get a Lugia figure if you pre-order SoulSilver.You'll get an Arceus figure if you pre-order them both at the same time.
If you mean to say "How do you get the description of the pokemon in Pokemon Platinum?" then I would say that you have to catch them in order to see their description. If that is not what you mean to say then I am confused and can not help you.
Pre order it
You can find Feebas the pre-evolved form of Milotic in the foggy room of Mt. Coronet however you will need to use a Super Rod in order to find it.