Plugin for WordPress FULLY AUTOMATED updates?

Hi,

I am searching for a plugin which does fully automated updates of WP-core and plugins.

I know it could be dangerous, but with some safeguards in place, it should work fine!

http://wordpress.stackexchange.com/questions/30596/a-way-to-auto-update-plugins-using-cron

although there are some reasons against, I operate several WordPress single site installations and this would save so much time.

E.g. trying the update/upgrade, if the ‘.maintenance’ file still exists after update, email the admin. So this is no blind flight.
Any ideas?