Why would you think this could ever be open source. It will be expensive to develop, and no corporation will spend the money to do so and then open source the software. It may (not likely) be jail breakable, but you still have to pay (probably) thousands to get it.

I was thinking one way for people to afford them would be to accept ads. I would hate that, and I think I'd just wear glasses or normal contacts.

In fact I'd be much more attracted to this sort of thing in glasses, because they'd likely be cheaper, and glasses can probably support more functions. And you wouldn't have a radio receiver concentrating radio energy directly on your eyes.