> There has been at least one add-on HUD-type display for motorcycle helmets for a few years (http://www.gizmag.com/go/2430/ http://www.gizmag.com/go/2430/). La

> There has been at least one add-on HUD-type display for motorcycle helmets for a few years (http://www.gizmag.com/go/2430/ http://www.gizmag.com/go/2430/). Last I read they weren't technically legal for road use in the US, not that I think anyone would be ticketing you for it. Has this ever ship? I know there were a few companies looking to do this for motorcycles where there is a huge benefit to not having to look down to check your speed. There is another company that does similar things for skiing goggles that looks really interesting. http://www.reconinstruments.com/shop http://www.reconinstruments.com/shop