Fundawear, vibrating underwear controlled via smartphone app to keep you and your long-distance significant other from masturbating like normal human beings. Or, more likely, to fingerblast some stranger you just met on the Fundawear forums.
We're not going so far out on a limb to say that Google Glass is the next Virtual Boy because, well ... we all still want one. Also, they already did it for us. Just watch the video, which, like the Virtual Boy ads, simply can't manage to downplay its own faults.