Not sure where this scan is from but, by fulfilling certain conditions in the upcoming Pokemon "D.P." (Diamond/Pearl), you will be able to bring over Pokemon from your GBA series of Pokemon games. The screenshot to the top-left shows how 6 Pokemon from a GBA game is ported over in one day.

As the article says, "Take this chance to go gather all the Pokemon you want from the Kantou and Houen Regions now!"

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