Despite my curiosity for emerging technologies, this type of bio-hacking scares me. I'm all for augmenting and virtualizing reality; however, embedding devices within the human body makes me cringe...
Imagine if Google's next big product involved a brain-computer interface in which the mind communicated directly with Google search. As great as this sounds, the phrase "security concerns" belittles ethical issues here. On the other hand, though, given medical resources, I would probably do the same myself. I guess my fears are caused by mass production, mandates, and lack of control, rather than the technology itself.