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Wi-Fi distribution, designed to celebrate the 10th anniversary of the North American release of Gold and Silver. This distribution is for Heart Gold/Soul Silver only.
Announcement on Pokemon.com.
This will be able to be soft reset, RNGed, etc as well.
No wi-fi for this event. Nintendo Power announced that the Arceus will be distributed at TRU from November 7-15 in the US only.
A scan is up at Bulbanews.
Edit: This is available for Diamond, Pearl and Platinum.
Pokemon Platinum web site by way of Bulbanews announced it today.
The dates are August 3 - September 13, and so far it's wi-fi only. No word on Toys R Us distribution or other territories as of yet.