Looking back at their filings there has been no dilution at all since at least December 2010, so the company does seem to have been pretty responsible with their share distribution thus far. I also thought I read something in the filings about the convertibles not executing until the pps hit's $2.00 but I could be mistaken.
In any case once they break ground on the extraction facilities it will be 2 to 3 years before they are fully operational, so until that time they will not be generating any revenues at all.
I don't really see any urgency to pick up shares here right now but that doesn't mean I won't try to pick up some cheepies in the coming months to stash away for the future because I do think it looks promising.