I searched and found nothing on this.
According to ign (http://wii.ign.com/articles/791/791929p1.html) Vivendi Universal is bringing Geometry Wars to the Wii and DS with the same title as this thread. I'm pretty excited about this and am interested to see how they integrate the controller. The 360 version was great and I'm pumped to be able to play it on a regular basis.
PS I posted this under VC because I'm under the impression that it could be downloadable.