Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 11201)
+++ wp-includes/functions.php	(working copy)
@@ -140,7 +140,10 @@
 	// let the user override the precision only
 	$decimals = ( is_null( $decimals ) ) ? $wp_locale->number_format['decimals'] : intval( $decimals );
 
-	return number_format( $number, $decimals, $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
+  $num = number_format( $number, $decimals, $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
+  
+  // let the user translate digits from latin to localized language
+  return apply_filters( 'number_format_i18n', $num ); 
 }
 
 /**