Have you seen or heard anything about these Google Glasses project yet? These glasses could enhance/invade/evolve our culture.

I could imagine looking at my fridge at home and then when I'm at the grocery store and looking at an item the glasses would show me how much of that item I have at home. Or when you're walking through the store discounts & ads would show up and arrows would lead you to the item. If it was laid out like that the marketers could bait customers to make impulse buys like never before.
The effect of this on sports could change the way we play and move as well. If a player was wearing these during a game they could measure the speed, distance, acceleration, odds - all in real time - and the player would have a slew of information to potentially draw from and make for faster and more advanced games.
The possibilities are crazy to think about, lots of pros & lots of cons. Unfortunately I feel the amount of privacy you would give away by virtually offering a live POV of what you are doing at all times to any hacker/government agency would prevent a lot of people from getting this.
Although I think if I was able to see/hear relevant information and then recall it flawlessly and assemble it through the use of these glasses it would allow my mind to focus on creating & connecting life's puzzling pieces and forming cohesive ideas on a much larger and focused scale.
What do you think? What would you like to see them used for? Other than porn. How else could it evolve our society? Would it be useful in sports? Could the glasses be used on other animals to teach them to perform tasks?
Project Glass: One day...