Rails plugin for directions from Google Maps?

Does such a thing exist? YM4R only seems to do markers.

Beginning Google Maps Applications with Rails and Ajax: From Novice to
Professional
http://www.apress.com/book/view/1590597877

http://geokit.rubyforge.org/

admanb escribió:

Use GeoKit to perform the geocoding.

Cheers, SAzima