Arceus can be yours this November! You can get this extraordinary Pokémon via a special character distribution event happening only at Toys"R"Us stores in the United States and Puerto Rico from November 7th through November 15th. You need to have a copy of Pokémon Diamond Version, Pokémon Pearl Version, or Pokémon Platinum Version to receive Arceus as well as your own Nintendo DS or Nintendo DSi system.

Arceus Information
Level 100
Classic Ribbon
Poké Ball: Cherish Ball
Held Item: Rowap Berry
Moves: Judgment, Roar of Time, Spacial Rend & Shadow Force.

When you trade this Arceus to Pokémon HeartGold Version and Pokémon SoulSilver Version, you'll be able to catch a level 1 Dialga, Palkia or Giratina.

Arceus can't be caught through normal gameplay, so don't miss this rare opportunity to catch the powerful Alpha Pokémon! Event information for Canada has yet to be announced.

Source: http://www.pokemon.com/#news_/XML/news_410.xml

nothing mentioned for other countries?