Thanks!
Epiphany's camera is visible in the production version. The site photo is a little outdated, here are newer pics where you can see the better aperture of the production model:
http://bestoftheweb.quora.com/Epiphany-Eyewear-smart-glasses...
http://instagram.com/p/gEi4OyP-40/
About Glass, while I agree that it's impressively miniaturized for today's technology, I don't think any display component available right now is up to the incredibly high standard of style that is required to be on a person's face. It's an uphill battle, and until some future date when a "holy grail" display component arises that can display images on a regular eyewear lens without any bulk, displays will not be stylish enough for people to feel comfortable wearing them.