It's Lato Light (Lato @ font-weight: 300) at full #000, it's not a particularly obscure choice I think. I've checked the rendering on anything-but-retina monito

It's Lato Light (Lato @ font-weight: 300) at full #000, it's not a particularly obscure choice I think. I've checked the rendering on anything-but-retina monitors (27" at 1920x1080) but it looked fine to me. Unfortunately, font rendering is still a bit of a crapshoot, it differs from OS to OS and even varies wildly between Linux distros (which may or may not use potentially non-free freetype functionality). In the end, I hope it's manageable. We're open to redesign offers though =).