Rails 3 geo positioning

I am开发者_Go百科 developing a Rails 3 application which I intend to use GEO positioning (long,lat). Both to save the users current position and to use this to find people in the near proximity.

Do you guys know of a good stabile Rails 3 gem that can do GEO stuff?

Thankful for all tips!

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See http://ruby-toolbox.com/categories/geocoding___maps.html

geokit + geokit_rails

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Geocoder looks great and supports rails 3.