http://192.168.2.20:8080/Location/new/123.123,-123.123/

map.connect '/Location/new/:coords/', :controller => 'Location', :action => 'new', :coords => /d+.d+,-d+.d+/
  map.connect '/Location/list/', :controller => 'Location', :action => 'list'
  map.connect '/Location/create/', :controller => 'Location', :action => 'create'

def new
    @coords = Location.new(params[:coords])
  end

NoMethodError in LocationController#new
  undefined method `stringify_keys!' for "123.123,-123.123":String

def new
  @location = Location.new( { :coords => params[:coords] } )
end