Ship to billing default option

admin/admin-settings.php

@@ -107,6 +107,14 @@ $woocommerce_settings['general'] = apply_filters('woocommerce_general_settings',
 		'checkboxgroup'		=> ''
 	),
 	
+	array(  
+		'desc' 		=> __( '"Ship to same address option" checked by default', 'woothemes' ),
+		'id' 		=> 'woocommerce_ship_to_same_address',
+		'std' 		=> 'yes',
+		'type' 		=> 'checkbox',
+		'checkboxgroup'		=> ''
+	),
+	
 	array(  
 		'desc' 		=> __( 'Show order comments section', 'woothemes' ),
 		'id' 		=> 'woocommerce_enable_order_comments',

classes/checkout.class.php

@@ -220,7 +220,16 @@ class woocommerce_checkout {
 		// Shipping Details
 		if ($woocommerce->cart->needs_shipping() && !$woocommerce->cart->ship_to_billing_address_only()) :
 			
-			if (!isset($_POST) || !$_POST) $shiptobilling = apply_filters('woocommerce_shiptobilling_default', 1); else $shiptobilling = $this->get_value('shiptobilling');
+			if (!isset($_POST) || !$_POST) :
+			
+				$shiptobilling = (get_option('woocommerce_ship_to_same_address')=='yes') ? 1 : 0;
+				$shiptobilling = apply_filters('woocommerce_shiptobilling_default', $shiptobilling);
+			
+			else :
+			
+				$shiptobilling = $this->get_value('shiptobilling');
+			
+			endif;
 
 			echo '<p class="form-row" id="shiptobilling"><input class="input-checkbox" '.checked($shiptobilling, 1, false).' type="checkbox" name="shiptobilling" value="1" /> <label for="shiptobilling" class="checkbox">'.__('Ship to same address?', 'woothemes').'</label></p>';
 			

readme.txt

@@ -113,6 +113,7 @@ Yes you can! Join in on our GitHub repository :) https://github.com/woothemes/wo
 * Added settings API to be used by Shipping Methods and Payment Gateways
 * Free shipping/Flat rate uses setting API
 * Free shipping coupons
+* Ship to billing default option
 
 = 1.2.4 - 18/11/2011 =
 * More sale price logic fixes for variations. Now correctly compares variation's prices.