I was really excited about this marker when I heard about too, but I don't think it's ever going to be a mass-produced item. It used the MQ valve, or at least a modified version of one, and the problem that arises there is that, even though PBX is gone, they still have the MQ patented, so in order to sell a gun for profit that was based on that design, you'd have to license it from them or buy the patent. Of course, being out of business, I'm not sure how prepared they would be to spend the money going to court to defend the patent. It's not really surprising though, Deadly Wind has this habit of coming up with really awesome ideas that never end up making it into full production.