[untog]

What if you want to offer transit directions from your location to a rental?

Actually, Google doesn't let you do that either. They have separate licensing agreements with every transit authority, so there is no API access.

You're right on the geocoder, though. The closest I ever found was Yahoo's, but they're still not up to much.

[ubercore]

Huh. Didn't realize that. Thanks for pointing it out!