Current customers can upgrade for $40, whereas new users will be able to get them bundled directly with their Vuzix AV230XL systems for $200. There's no guarantee that you'll get mugged if you wear these things on the subway, but broadcasting that you have both an expensive phone AND an expensive pair of video goggles doesn't help your chances. [Vuzix]
If you wear them on the SUBWAY, you deserve what you get. Who in their right mind blinds themselves with fancy gizmos on the train? At least you can casually observe your surroundings while watching a video on its native display.
Caution: Use only for private quarters/seating.