Thanks, it's really great to see some South African photography being showcased. I for one welcome the diversification - after all, photography is not only about cameras and lenses!
I suspect DPR is misinterpreting the "at least HD" statement. 720p is also an HD standard, and I suspect the Lytro camera will have an image resolution of around 960 x 720 (in other words, 720p vertical with a 4:3 aspect ratio) with an array of 4 x 4 pixels under each microlens, giving an 11.06 MP sensor "11 mega rays" in Lytra terms. (I can see four distinct focus zones in the posted Lytro pics, which may be related).