Vuzix Wrap 920AR
Google's Project Glass glasses aren't the first HUD glasses to (almost) hit the market. That honor goes to Vuzix's Wrap 920AR glasses, which are augmented reality glasses designed to be used with a Windows PC.
The Wrap 920AR glasses, which cost $1499, feature a near-eye display system that produces the visual equivalent of a 67-inch display seen from approximately 10 feet away. This display feature is meant for viewing videos and images--not for taking advantage of the glasses' AR capabilities. To use the AR capabilities, you'll have to connect the glasses to a PC. The Wrap 920AR glasses support both 2D and stereoscopic 3D images.