Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 7189)
+++ /CKEditor/trunk/CHANGES.html	(revision 7190)
@@ -42,4 +42,5 @@
 		<li></li>
 		<li><a href="http://dev.ckeditor.com/ticket/8242">#8242</a> : The "&raquo;" character is now added to the Special Character dialog window.</li>
+		<li><a href="http://dev.ckeditor.com/ticket/6089">#6089</a> : Minimum compatibility with iOS5. </li>
 	</ul>
 	<p>
Index: /CKEditor/trunk/_source/core/env.js
===================================================================
--- /CKEditor/trunk/_source/core/env.js	(revision 7189)
+++ /CKEditor/trunk/_source/core/env.js	(revision 7190)
@@ -85,4 +85,13 @@
 			 */
 			mobile : ( agent.indexOf( 'mobile' ) > -1 ),
+
+			/**
+			 * Indicates that CKEditor is running on Apple iPhone/iPad/iPod mobile devices.
+			 * @type Boolean
+			 * @example
+			 * if ( CKEDITOR.env.iMobile )
+			 *     alert( "I like apples!" );
+			 */
+			iOS : /(ipad|iphone|ipod)/.test(agent),
 
 			/**
@@ -240,5 +249,10 @@
 		 */
 		env.isCompatible =
+
+			// White list of mobile devices that supports.
+			env.iOS && version >= 534 ||
+
 			!env.mobile && (
+
 			( env.ie && version >= 6 ) ||
 			( env.gecko && version >= 10801 ) ||