I found it interesting (just started reading it, so this is near the beginning) that they have no employees in the SF Bay Area. Since I assume they are using Ruby and RoR (heh), it seems like there must be some filtering function removing the many talented developers expert in their stack from their recruiting pool. It could be as simple as salary (maybe they aren't willing to pay "market-rate" for SV) or it could be something else. Anyone know?