I host an Open Hacker House in San Francisco each Friday, 3-7pm at Epicenter Cafe, 764 Harrison. Come on by -- there's usually a few HNers and YC applicants, if not YC-funded folk.
3-7 on Friday isn't that convenient for those of us who work down south... why not a Sunday afternoon/evening thing instead? I'm often working there on sundays
I'd love to but I can't commit weekends. You can hold your own, though. Just pester your friends and commit to be there every week.