Diesel Cafe in Davis Square (Somerville). In the past, a lot of YC folks used it as a hackspot. Not sure if that's still the case, but the last time I was there, I met a couple of (non-YC) guys in the booth next to me who were working on a web app. You can find programmers there.
Unfortunately, the wifi isn't free. And the bathrooms aren't quite as clean as Darwin's. =)
Unfortunately, the wifi isn't free. And the bathrooms aren't quite as clean as Darwin's. =)