"Apt is not installed with Fuduntu. Yum (Yellowdog Package Manager) is the replacement. For more help on yum, "man yum" from a terminal, or google "yum howto"."
"The "debi" package installer is not included. Instead, the "rpm" command can be used to install .rpm packages. For more help on rpm, "man rpm" from a terminal, or search the internet for "rpm install howto"."
Last time I checked, circa 2006, the db got corrupted three times in 1.5 years and I had to dance the hell-dance in order to get a working system back...
[EDIT] And that's primarily why I love apt / dpkg
Yum also has an option (disabled by default) to remove unneeded auto-installed dependencies when removing packages (set clean_requirements_on_remove=yes in /etc/yum.conf)[1]. This option does not remove manually-installed packages (though the docs are not clear on this point, unfortunately).
I was fond of Arch when I first heard of it, because back then I was still a BSD fanboy. But as time has progressed I find the use of rc a bit stale and I actually like the initiative of LSB.