Here's my review of the new Mobius HD camera with the C2 wide-angle lens. It's not massively different from the original Wide-angle lens, but I think it's giving a better colour reproduction than the original.
It's a great camera anyway, so if you haven't got one it will get great footage on whatever your multi-copter/plane of choice !
This was kindly supplied for review by Banggood.com, so if you'd like to check it out here's the (affiliate) link -