An Open Web advocate and front-end engineer, who loves everything mobile, and writes about HTML5, CSS, JS, UX, tech events, gadgets, etc. She unintentionally got 15min of fame by creating The HTTP Status Cats. Also, the opinions expressed here are solely her own and do not express the views or opinions of my employer.
I saw this Google ad on the MUNI bus I take for commuting (yes. I take a MUNI and company shuttle to commute to Sunnyvale from SF!) and tried it and like it a lot.
This is a nice additional feature on Google Maps that gives you step-by-step transit directions including estimate travel time. It covers MUNI, BART, CalTrain, etc. also walking route. (but it looks like ferry is not covered).