Vuzix is now shipping their Wrap 1200 3Ds, a pair of $500 glasses (a headtracking model called the 1200VR is coming later this month) that displays a 75-inch virtual screen in front of your face and supports 3D content. You have separate focus settings for each each eye and these are as light and small as a standard pair of sunglasses.The Vuzix 1200s also allow you to wear your own prescription lenses under the device.