This is a #$%$ shoot, at best. When will they run out of money and go out of business, when will they declare a reverse split, and so on. The hoped for outcome is that they will show a major revenue breakthrough before the lights go out. That could happen if just one major revenue producing contract is forthcoming, but so far Apple has paid them a one time fee (used I believe to pay down expenses) and nothing else, and Swatch has used the material for a decorative watch bezel (how much revenue did that produce? Apparently not much). I give it less than a 50-50 chance at this point. If that is the case, and if you believe that investing in stocks is gambling but with the odds in your favor, this is probably not a very good investment.
Just my humble opinion.