Well apparently they are supposed to represent a Nintendo DS by wearing one peice of clothing sewn together to represent the two screens one is holding a stylus not sure what the other has.
Considering (if I remember correctly) the advertising slogan is "Touching is good" or something as a provacative way of expounding upon the greatness of it having a touch screen (but really just a cheap excuse to use innuendo) and the girls in the image appear to be underage I dont think its a very good avatar
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One pill makes you larger
And one pill makes you small
And the ones that mother gives you
Don't do anything at all
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"White Rabbit" - Jefferson Airplane