README.textile in haversine-0.2.0 vs README.textile in haversine-0.3.0

@@ -1,33 +1,54 @@
-h1. Haversine - geo distance calculations
+h1. Haversine Distance
 
-Calculates the haversine distance between two locations using longitude and latitude. 
-This is done using Math formulas without resorting to Active Record or SQL DB functionality
+This gem calculates the Haversine distance between two points given their longitude and latitude. This is done using trigonometry without ActiveRecord or SQL. See http://en.wikipedia.org/wiki/Haversine_formula for details on the Haversine formula.
 
-This is meant to ba a replacement for all those geocode and geolocation utils out there that use built in SQL DB functionality for their calculations!
+This is a replacement for all geo libraries that use built-in SQL DB functionality for their calculations.
 
 h2. Install & Usage
 
-<pre>require 'haversine'
+Install this gem with @gem install haversine@. Calling @Haversine.distance@ with four lat/lon coordinates returns a @Haversine::Distance@ object which can provide output in kilometers, meters, miles, or feet.
 
-it "should work" do
-  lon1 = -104.88544
-  lat1 = 39.06546
+<pre>
+require 'haversine'
 
-  lon2 = -104.80
-  lat2 = lat1
+distance = Haversine.distance(35.61488, 139.5813, 48.85341, 2.3488)
 
-  dist = Haversine.distance( lat1, lon1, lat2, lon2 )
+distance.class => Haversine::Distance
+distance.to_miles => 6032.71091869803
+distance.to_kilometers => 9715.47049115903
+distance.to_meters => 9715470.49115903
+distance.to_feet => 31852713.6507256
+</pre>
 
-  puts "the distance from  #{lat1}, #{lon1} to #{lat2}, #{lon2} is: #{dist[:meters].number} meters"
+Convenience aliases for the measurements exist:
+<pre>
+distance.to_kilometers == distance.to_km
+distance.to_meters == distance.to_m
+distance.to_miles == distance.to_mi
+distance.to_feet == distance.to_ft
+</pre>
 
+Note that @to_m@ is the distance in meters, not miles.
+
   puts "#{dist[:feet]}"
   puts "#{dist.meters}"
   puts "#{dist[:km]}"
   puts "#{dist[:miles]}"
+  puts "#{dist.to_mi}"
+  puts "#{dist.to_miles_}"
   dist[:km].to_s.should match(/7\.376*/)
+  dist.to_km.to_s.should match(/7\.376*/)  
 end  
+
+If you have lat/lon pairs stored in an array, you can alternately provide two arrays when calling @Haversine.distance@:
+
+<pre>
+require 'haversine'
+new_york_city = [40.71427, -74.00597]
+santiago_chile = [-33.42628, -70.56656]
+Haversine.distance(new_york_city, santiago_chile).to_miles => 5123.73
 </pre>
 
 Note: Haversine is used in the "geo_magic":https://github.com/kristianmandrup/geo_magic gem
 
 h2. Contributing to haversine
@@ -41,7 +62,6 @@
 * Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
 
 h2. Copyright
 
 Copyright (c) 2011 Kristian Mandrup. See LICENSE.txt for
-further details.
-
+further details.
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