In Joomla 1.55 with CiviCRM 2.1 beta 5:
- Configure Google as mapping provider
- Go to a contact record (contact/view) with a valid mappable address
- Click "Map this Address" on contact summary (e.g. administrator/index2.php?option=com_civicrm&task=civicrm/contact/map&reset=1&cid=102&lid=1)
- Click "Done"
You will be redirected to joomla/administrator/ (J admin control panel), rather than back to the contact's Summary screen.