We have seen plenty of these wearable computer displays in our time but the Japan only DataGlass 3/A Head Mounted Display is reinforced to be dustproof, as well as waterproof. The 800 x 600 DataGlass eyepatch connects and draws power via USB and once plugged in, the wearer will feel as if a monitor is hovering in space about two feet in front of them. The DataGlass runs for about 1,600 bucks.
[Source: SciFi Tech]