According to the Kotaku site, the Wii-mote holder is being peddled as a batwing. We have never seen an albino bat before, and looks to most people like a boomerang.
Kotaku said the shape of the device lends itself to be flung across the room. Given the fact that there were complaints that the Wii-mote could be thrown if it was not strapped to the wrist, we think it is a good thing.
After the Wii-mote has left your hand and crashed through your television, it will return to your hand and mean you will not have to search through the broken glass for it. Unless your boomerang won't come back.
A picture is here. µ