I agree Mickman, they need to get an announcement out.
While there has been some interesting tidbits appearing here lately, many investors won't buy into a stock purely based on anonymous comments on stockmarket forums, and I can't really blame them.
I may be mistaken, but my understanding has been that the ideal time for a phoslock treatment is during the colder months: from November to March in the new year in the northern hemisphere. But as you note, the exception is if it gets so cold the water freezes over.
We are getting nearer to the ideal time to treat water in the European, North American and Northern Asian countries so hopefully we will hear some news soon.