Its getting a little ridiculous what they are coming out with now. I find it sad that anyone would need or even use these. If you need to look up an address or phone number or w/e take a min pull your phone out and do it. Do we really need glasses like this?
Come on, this isn't even the future it's the present. The close future replaces these things with lenses and the somewhat distant future replaces it with a nice implants. Google has this idea too as they made a (fictional) television series about the H+ Nano Teoranta
http://www.youtube.com/user/HplusDigitalSeries (I liked the series btw).
Don't forget this is supposed to be the information age!