Original: It was released for the Nintendo DS in Japan on September 13, 2008, in North America on March 22, 2009, and in Australia and Europe on May 14, 2009 and May 22, 2009 respectively.
Simplified: Pokémon Diamond/Pearl - Pokémon A remake of Diamond and Pearl called Pokémon Platinum was released in Japan in Autumn 2008, and released in the USA and UK on March 22, 2009.