A combination county fair, food festival and block party - free admission, and all the food's under $5. Here's the lowdown. It's a food and fun festival thrown by local restaurants, that pointedly use local ingredients. I think it'd be a good place for us to meet up, enjoy the sunshine and good food!
For the full lowdown: http://www.eatrealfest.com
The hours are Fri 1pm-9pm, Sat 10:30am-9pm and Sunday 10:30am-5pm.
The lime green B shuttle runs along Broadway to and from Jack London every day but Sunday, for free - best price for friendly ponies!