To be honest, even I don't really know. I can tell you that there have been 34,067 downloads of build 16 from sourceforge, so there are probably over 10,000 people who have tried it once. After that point, who knows. Our community is kind of small, but seeing how a select few games (namely WoW, BF2, and CS) are sucking up the vast majority of gamers, we're actually not doing that bad. Lots of professionally made games aren't doing any better.