The EtherPad team has been working in Dog Patch Labs SF for the past 3 months, and we love it. Great community of hackers and entrepreneurs, and the Polaris guys are awesome.
Funny, I just talked to Mike Hirshland thinking he was a fellow hacker. They're sharing office space with the company we rent our office space from!
If only the announcement came before the ritual September 1 lease signings here in Boston!