If I&#x27;m reading you right, that&#x27;s kind of exactly what Garmin&#x27;s action camera Virb does.  I got one for my dad to use mountain biking and it syncs up the video with the gps location, the speed he&#x27;s traveling, etc.  Those stats can be overlaid onto the video, it&#x27;s kinda the angle that they&#x27;re taking while trying to get into the action camera market.  Not sure if it&#x27;s exactly the thing that you were looking for, but it sounded close enough.<p>Full disclosure, I work at Garmin.