I have installed Debian 6.0.4 and I wanted to install software from repositories. But there are missing packages. So, as I used to be a Ubuntu user, I though I could use Ubuntu's repositories. After i've installed the list from http://repogen.simplylinux.ch/, i tried to install some software. But I get some alerts about untrusted sources.
Is it a wise decision to install Ubuntu related software to Debian?