Next weekend, October 19-21 Google will be sponsoring "re-route/sf" a hackathon to help San Franciscans get around.

Google is looking for teams to help design and build innovative tools to improve transportation in San Francisco to address three challenges:

1. Collecting the right data.

2. Planning a trip anywhere - on-time

3. Seeing what's broken and watching it get fixed

If you are local to Bay Area in California and are interested , you can find out more here: http://hattery.com/reroute/

To see other services that have been built on top of Google Maps API you can visit the developer showcase here: https://developers.google.com/showcase/#tags=maps

http://hattery.com/reroute/