If any of you are looking for a cheaper and larger sensor package than the Nikon & Sony offerings the Samsung NX-1100 flies ok with the Phantom 2.
It's what I'm using, although I don't currently have long range FPV, I'm looking at modifying the wifi antenna on the camera.
Samsung Prime Lenses are also excellent piece of glass and well suited to aerial photography. I use the 10mm fisheye, which has a micro-stepping auto focus, which is great for video and stills on a less than stable platform.
/edit
I just read about another alternative; the Nikon J4. It will weigh the same as the RX-100, have the same sensor size but also have interchangeable lenses, and 20fps photo shooting, which is a MAJOR plus. That equates to nearly full speed, 4k cinematic footage when stabilised in post, from a proper camera, and it is also relatively cheap.