It looks like GameFly had their listing partially right and partially wrong. Developer Frame Studios has confirmed that Gem Smashers is indeed heading to Wii, but the DS listing was a mistake. The truth is, the title is actually heading to the 3DS instead. No word on when these games are going to launch, but it's always good to see more 3DS support as the weeks roll on.
Thanks to Hero of Legend and GoNintendo