When I read this blog post about discontinuing of adept development,
because Kubuntu would change its default manager to KPackageKit, I realized that more distributions are switching to packagekit (with Gtk2 and/or KDE QT frontend) as their default packagemanager.
I went to the packagekit mainpage and had a look at the developers of packagekit and saw that they came from Foresight Linux, rPath, openSUSE, Red Hat, Gnome, Fedora, Pardus, Mandriva and some other areas.
I decided to give packagekit a try to to see if was as good as one might expect, using the AUR repository of Arch Linux, and installed packagekit and gnome-packagekit. (Yes there are gui package managers for Arch.)
In the first place it looks very good , also its easy to use and its blazingly fast (On my box).
Here is some explanation about Packagekit , and it looks like packagekit does not try replace your tools, but I expect that soon Synaptic will look like Gnome-Packagekit, and Packagekit-QT will become the default gui for KDE.
Linux distributions take their first steps into uniformity, starting with packagemanagement, and I think that is good news.