diff -urp /Users/kris/Downloads/mobile_tools/plugins/access/is_mobile.inc mobile_tools/plugins/access/is_mobile.inc
--- /Users/kris/Downloads/mobile_tools/plugins/access/is_mobile.inc	2009-10-14 19:26:09.000000000 -0500
+++ mobile_tools/plugins/access/is_mobile.inc	2010-07-07 12:55:32.000000000 -0500
@@ -41,9 +41,9 @@ function mobile_tools_is_mobile_ctools_a
     '#description' => t('A description for this test for administrative purposes.'),
   );
   $form['settings']['mobile'] = array(
-    '#type' => 'select',
+    '#type' => 'checkboxes',
     '#title' => t('User Agent'),
-    '#default_value' => $conf['mobile'],
+    '#default_value' => $conf['mobile'] ? $conf['mobile'] : array(),
     '#options' => $options,
     '#multiple' => TRUE,
     '#description' =>  t('Access will be granted if the client browser matches.'),
@@ -55,7 +55,13 @@ function mobile_tools_is_mobile_ctools_a
  */
 function mobile_tools_is_mobile_ctools_access_check($conf, $contexts) {
   $browser = mobile_tools_is_mobile_device();
-  $access = in_array($browser['group'], $conf['mobile']);
+  $mobile = $conf['mobile'];
+  if (is_array($mobile)) {
+    foreach ($mobile as $key => $device) {
+      $mobile[$key] = strtolower($device);
+    }
+  }
+  $access = in_array(strtolower($browser['group']), $mobile);
   return $access;
 }