This just in!  Well, kind of.  Others have beat me in posting it, but I was at the National Bike Summit where Google reps unveiled their new bicycle maps feature this morning!  It currently covers 150 (?) cities in the U.S. — I’m assuming those would more or less be the largest cities.  Check it out here and read more about using it at cyclelicio.us.  It looks like St. Louis is on the map, so to speak, and I look forward to playing with this more in the future.