With the volume of soccer moms who own a Wii, it kind of stands to reason that a range of dildo attachments would come sooner or later. What you're looking at is not an innocent attachment that merely looks like a sexual aid -- it is a sexual aid.
"The device is attached to the accessory port on a Nintendo Wii remote control," explains manufacturer Mojowijo. "The control is then connected to a bluetooth enabled PC running Mojowijo software.
"Using Mojowijo's patent pending Motion2Vibration technology, the device is able to transform the varying motions of the control into appropriate vibration signals and send them to another selected device - in the same room or over the internet. (Wii gaming console NOT required). Essentially turning your Wii remotes into shared, remote controlled vibrators (aka wii vibrator or wiibrator!)."
The central gimmick here is that you get to control another person's vibrator as opposed to your own, which makes them masturbation devices for people who should just be having actual sex. Unless they're miles apart, in which case these things work over Skype.
Now the real question is this ... who the hell would want one of these monstrosities up their chuff?