The Financial Times combined sales data from industry monitors NPD, Enterbrain, and GfK for sales in the U.S., Japan, and Europe, respectively. The data runs through August in Japan and July in the U.S. and Europe.
Nintendo hasn't held the top console sales spot since the era of the Super NES, before Sony's PlayStation consoles began their dominance. Nintendo's own numbers through June actually give the Wii sales a larger figure than the Financial Times report, placing it at 9.27 million consoles sold, though these numbers reflected sales to retailers.
With Wii sales high since launch--tripling that of the competition in Japan alone last month--the announcement was sure to come before long. Shacknews attempted to contact both Mario and Luigi on the story, but the pair were unavailable for comment.