Coming Soon (real soon) ! A necklace device that lets you view data about every object you encounter

This early version of augmented reality has been stirring up some discussion on the blogosphere. The debate is about personal privacy. I agree that there is much to be afraid of in terms freedom, but I am equally concerned about the impact this genre of digital connectedness will have on the teaching and learning process. Some say that it will change how education is "consumed" - instead of go to place (face-to-face or virtual) and consume your knowledge, you can now obtain that content in real-time as you experience it. This assumes many variables such as access to people, places and objects that have educational importance so the digital divide may morph into something less about access to hardware and more about access to the right the content. In any event, I am sure their will be more to come on this emerging technology as it evolves out developmental phase and into mainstream consumer phase. What are your thoughts on this?