Bike sharing is now in San Francisco. Those familiar with bike sharing programs in Europe and New York may be interested in the SF program. For a daily fee ($9), you get unlimited 30 minute rides on a bike. You can pick up a bike from Union Square and return it in Fisherman's Wharf, downtown SF or by AT&T park. No helmets are provided and there is a surcharge if you don't return the bike within 30 minutes.
Because of the 30 minute limit, it won't replace the bike rental shops where you can rent a bike for 3-4 hours to bike the Golden Gate Bridge. And MUNI is a much cheaper ride. But if you just want to ride along the Embarcadero -- it might be worth it.
