title: Default site language based on the ip with rails 3
body: <p>I've a multilanguage site, based on the localization of the visitor (his ip), I'll use one language or another (setting the I18n.locale).</p>
  
  <p>i.e: for a visitor from France, the default language will be french, for a visitor from US the default language will be english.</p>
  
  <p>Which gem do you recommend for that, there is <a href="http://ruby-toolbox.com/categories/geocoding___maps.html" rel="nofollow">a wide range of choice</a>.</p>
  
  <p>Thanks</p>