I remember reading about similar technology before at least twice here on HN; it was 'glass in spray' then[1]. It was supposed to be here soon and revolutionize everything. I hope that this time it will actually become available to buy.
This can be bought in Europe for furniture. It is a family business, so I think they are building it up slow. They have had some good studies on their product, and I still hope we will see it in the next few years. I think it is legit.
[1] I think this one: http://www.smartplanet.com/blog/smart-takes/-8216liquid-glas...