http://www.mymodernmet.com/profiles/blogs/cicret-bracelet
At first glance, a cool idea. I wonder if it works in daylight? Battery life?
I can’t see how they can make it work in practice, but it is a nice idea. I looked carefully at the pics, and they smell of Photoshop to me because all the text appears sharp in all pictures, yet the projection is onto an unpredictably uneven surface, but the depth of focus appears perfect all the time.