arceus i believe
After July 15th, the only Nintendo event for Pokemon Diamond or Pearl (or Platinum, too) would be in Japan, where they give out an Arceus, starting July 18th. However, this is ONLY in Japan, and nowhere else.
action replay or event
A real-life event where you can download mystery gifts on Pokemon Pearl
none
the next event i think is the darkrai event,i think its sometime in February celebrating the release of Pokemon 10 the rise of darkrai That was for 2008. Now it's Arceus. On July 18 2009 you can get him
Pokemon Pearl was released in the U.K. on July 27th, 2007.
You need a special Pokemon event.
the wonder card can only be obtained through a Nintendo event
Nintendo Event
go to a event
you get shaymin in Pokemon pearl by a event comming soon.
Probably at/after the next movie comes out. The movie is called Girataina and the Sky Bouquet, hinting that the legendary Pokemon Shaymin will make an appearance, and that the event will also be for Shaymin. The movie comes out in Japan July 2008