Yes, we've seen spyglasses before, however those were begging to be worn by Austin Powers. These pairs of sunglasses in contrast are banging! The price for a pair is just over $1000, but knowing that you can later see what you've been seeing all day is priceless. They have an internal memory of 32Mb and is expandable with SD cards. It wouldn't be surprising if people wanted to use these for card counting.
Implications - The camera inside of the glasses records everything in full color, just as you see it. The sunglasses also record audio, which is great if you are filming something such as a family event. The shades are nice to bring to the beach too instead of lugging around a big video camera.