Ubuntu community repositories (Universe, Multiverse or Medibuntu) should be like Packman is for openSUSE. I'm dissapointed with quality of current repos full of old, obsolete packages. I wish we had one, high quality maintained repository with newest stuff and not only few backported packages sometimes, if any...
Currently would e.g. latest Gstreamer 0.10.7 multimedia plugins make me happy (changelog/improvements are huge), but they are not available for Ubuntu 7.10, but in Suse world you will get excellent services even for obsolete 2 years old version Suse 10.0 and you can search any packages you want and find them also for older Suse versions. Now that' what i call community repo...
If you now install 6 months old openSUSE 10.3 you will get premium support with newest, constantly updated/recompiled packages for lots of applications for quite some time. GetDeb is promissing project, but still far away from Packman - The real long term support :)
And not to mention Suse NVidia+ATI repo, Compiz repo, Banshee repo, Mozilla repo, Beagle repo, Wine and the list goes on...
http://en.opensuse.org/Additional_YaST_Package_Repositories