Of course apt-rpm works with RPM packages. In fact it was the first depsolver in the RPM world that did. Since 2000 or 2001 it was used in the Red Hat world (remember FreshRPMS ?) to download, install and manage dependencies on Red Hat systems. Yum is much newer and became the default, but in my personal opinion apt is much more robust, faster and more versatile.
You can have both apt and yum installed on the same system, although you have to manage the repositories separately if you plan to use both. I do it all the time, use apt for most of the things and use yum if I have to test something or provide support on CentOS mailinglists/forums.
Dependencies!
Of course apt-rpm works with RPM packages. In fact it was the first depsolver in the RPM world that did. Since 2000 or 2001 it was used in the Red Hat world (remember FreshRPMS ?) to download, install and manage dependencies on Red Hat systems. Yum is much newer and became the default, but in my personal opinion apt is much more robust, faster and more versatile.
You can have both apt and yum installed on the same system, although you have to manage the repositories separately if you plan to use both. I do it all the time, use apt for most of the things and use yum if I have to test something or provide support on CentOS mailinglists/forums.