I’ve heard very little about Q-Carbon, mostly from my friend who is more into this sort of thing than I am, but I kind of got lost by his nitpicking over the definition of “phase”. Still, it wasn’t so much Q-carbon itself that interested him so much as what can be done with the methods used to control the crystalline structure of Carbon and the fact that those methods are done at one atmosphere and room temperature.
Then again, I haven’t seen anything on it more than about two days old :/