JVC and Sony are taking on GoPro with new small HD "action cams". The shape of these will possibly have much better aerodynamics than the GoPro... more in line with Contour's cameras. Notice JVC's is already "quad proof". I'm sure they had quad copter drones in mind. :)
JVC's appears to have more features, but I'm especially interested in Sony's as it's rumored to have image stabilization and a Zeiss lens. Not to mention, it looks really small and sleek. It would require a water proof case (if needed) like the GoPro, where the JVC is bullet proof, well "quad proof" out of the box. I haven't come across any details about whether either camera supports a live analog (SD) output. Post a comment if you know anything about these cameras.