Found this on Hack-A-Day. Uses the Contour camera and an R/C servo. http://hackaday.com/2012/10/26/gyrocam-keeps-the-horizon-level-even-when-the-camera-isnt/ ...Tiger
Works pretty slick. From that video I wandered on to check out the 3D printing machines used to make the gears. That's very interesting stuff too.