An official Wi-Fi tournament was announced:
http://www.pokemon.com/us/news/pgl_autumn_friendly-2011-10-06/
They seem to be using the VGC 2011 rule set:
-Unova Pokemon only
-Double Battles
-Bring 6, choose 4
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Pokemon VGC2011 NW Regional - Top 8
Pokemon VGC2011 US Nationals - 54th place