Concerning the LED glowing puck, this is really old news, too. They started doing this at least 5 years ago.
I don't see why it wouldn't be possible to embed such a camera device, you just need to funds to develop it further. As it stands, right this instant, with parts and technologies available to purchase today, October 6, no it's not possible.
The question is why you'd want to do such a thing. I can't imagine images from such a camera being all that great.
