When it comes to the high-end helmetcam game, GoPro and Contour seem to have the market cornered. Contour was first to bring 1080p to your headgear of choice, and now it's the first to add GPS in to the mix. (GoBandit started talking about doing the same back in February, but we're still waiting on that to become a reality.) The $349 ContourGPS still offers the same video specs as the $279 ContourHD 1080p we