A few months ago I whined about the Google Maps transit planner not working very well.
Well somewhere since I last looked, they fixed it!
Transit directions now include San Francisco MUNI bus and train routes and walking to/from stations, so you can actually put in start and end points and get something useful! The alternate route selection is a little different from the driving directions (you get a short list of a few options, rather than being able to click and drag waypoints to whatever route you like), but still quite useful; it comes up with pretty close facsimiles to the three alternate commute routes I use in reality.
Goodbye, 511.org!
Now if they can just integrate the transit lookups into the iPhone Google Maps widget… d’oh!