From CMS Fruit:
JAdmin is the ultimate administration software available for Joomla No need to go to /administrator, now you can perform all your administrative tasks right from your desktop. JAdmin enables you to perform administrative tasks that the default Joomla Administrator does not. Monitor your Joomla Web site(s) activity with detailed information on your Web site's visitors. JAdmim allows you (the administrator) to login to your Joomla Web site as any of your Web site's registered users, allowing you to quickly see what your client sees. With JAdmin you can perform any Joomla administrative task quickly and efficiently, maximizing productivity, and enabling you to focus on other important things.