I've got the new Kubuntu 8.04 KDE4 Remix running now on my laptop and it is looking really good. I really like the new visual design and it is great that the Kubuntu project team made a release featuring KDE4 available on top of everything else they have had to do to get the main release of Kubuntu out. Up to now I have been running KDE3 and experimenting a bit with KDE4 on a virtual machine, but now I'm making the move full time. I don't know yet if that will prove a good decision while KDE4 is so young, it was only released in January 2008, but it is easy enough to swap desktop system on an Ubuntu distribution so I thought it was worth gaining that "bit of an edge" and going with the latest desktop experience that is available on Linux. The Ubuntu distributions always show very significant progress on every new release, and 8.04 has followed this trend and I'm finding it very pleasant to use.