Really good tool for wordpress users

I’d like to introduce good tool helping to administer multiple wordpress sites at one place – wp-fox
This utility is all-in-one tool for sites management.
Some features:
– upgrade all plugins by a click
– upgrade several wordpress by a click
– install a plugin/theme to several blogs at once
– setup new wordpress on your hosting without need to have any other tool (like ftp client, etc)
– backup/restore
Manage users, posts, pages.

See details at http://wp-fox.com