Konverted
Well, i've been konverted. I don't think I've used kde for more than 10 minutes sense I've switched to Ubuntu. The kde4 release was notoriously bad, but even the later updates didn't really fix most of the issues with it.
Anyway, I've been trying it out on Jaunty and it seems pretty stable. There are definitely a few rough spots, but this much is clear to me. That the massive refactoring they did with kde4 is starting to pay off. Gtk+ seems pretty much stuck in the mud, and although gnome had really begun to be very well refined, it is clear that it will not be capable rapid innovation the way that kde is moving.
The kde window manager has a very smooth feel to it, compiz had all kinds of issues with screen artifacts on my nvidia card. Kate is a fantastic text editor (much better than gedit). The music player Amorok is very polished and works with my mp3 player. The PIM tools are fairly good.
Having sung it's praises, kde 4 still has a way to go. The network manager interface is junk. The bluetooth tray icon crashes. I'm still using synaptic to do my package management, the kde version is missing several important features. One thing I'm pretty confident of though, the next year or two should see dramatic improvements on the kde front where gnome will remain gnome.

