Yes, there is a crazy person who wants this. I do not want automatic updater to appear in Dashboard, would be nice if it was possible to do throu wp-config file.
Why? I host and mantain several wordpress blogs, and those people are mostly PC illiterate, plus i just manage each WP instance throu an svn batch I made, and I dont want them to upgrade core script by themselves.
They dont have config access so this "new feature" would be cool :)