There's been no new information as far as I can tell, at least from official sources. This title was not mentioned at all in Nintendo's earnings reports. However, that doesn't mean that it's not selling because Nintendo only puts out numbers for titles which have sold more than 1 million copies in the last 4 quarters.
@Stitch, Also, the info was posted as part of this article. It also highlights the other titles that have sold over 1 million in their lifetime on the Wii and DS.
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There's been no new information as far as I can tell, at least from official sources. This title was not mentioned at all in Nintendo's earnings reports. However, that doesn't mean that it's not selling because Nintendo only puts out numbers for titles which have sold more than 1 million copies in the last 4 quarters.