And there are more products and companies coming. I even saw a piece on a company that is making 'leather' out of mushrooms! It is as strong as real deer hide, they can produce a 'cow' sized sheet of the stuff in 2 weeks on a couple of those chrome shelving units that you see in designer magazines instead of taking acres of land! We're on the cusp of change.
http://www.sciencefriday.com/videos/the-fungi-in-your-future/
http://www.sciencefriday.com/videos/the-fungi-in-your-future/