To be honest, Ohlson, I don't know when we'll see 500 lumens. It all comes down to how much light these guys can gather. Obviously, since we don't know how they're overcoming the problem of etendue, we can't even guess at what light efficiency they're seeing. So we really don't know how many LEDs are needed as a source. The basic answer is that when we know how many lumens they're seeing now and at what efficiency, then we can probably estimate when we may see decent output, using Lumiled's roadmap as a guide. Until then, though, who knows?