I use Mandriva Cooker. A bleeding edge distro. packagekit is the latest offering from Mandriva for package management. Coupled with KDE's kpackagekit, it integrates nicely with KDE 4. It's still not recommended for general though. The interface is confusing for first time user. Every button can be clicked while the other process running and it crashes often. Please use Mandriva Control Center for it.
Let's see some screenshots of it.