Me too. I think the Kubuntu developers did some great work pushing the envelope on what KDE can do on the desktop and netbook, and a lot of their work has appeared upstream. Kudos to Jonathan Riddell and the other Kubuntu devs! Personally, though, I needed stability more than shiny new features so I switched to Debian (ironically) unstable. Not only does it offer a more stable desktop experience with KDE 4.6 than does Kubuntu, but because its a rolling release distribution the packages are usually fresher than the latest Ubuntu release and I haven't had to reinstall in over a year. Hopefully now we will have more manpower to work on stable, vanilla KDE 4.7 and 4.8 on Debian.
As for Ubuntu, I now have zero reasons to install it.
You may have zero reasons to install, but it made a great deal of sense to many people I would point at a distro. Yes, KDE 4 is craploads better than Gnome . Really.
However, as much as I love debian, I am not pointing raw users at a distro that expects the users to be able to deal with massive breakage when certain libs and so on are updated, and yes, that shit happens all the time in unstable. Hence the name. So now I have to point them at ubuntu, maybe suggest they install kubuntu-desktop and hope it isn't broken now, or just leave them with Unity.
Either way, debian unstable does not want a crapload of kubuntu refugees, trust me, no one will enjoy that.