Some tidbits I’ve gleaned and where to get more in depth info:
KDE3.5 has been released! Hopefully this means that it will make its way into the Fedora Core 5, due out in Feb 2006. Or, if they’ve completely moved KDE to the extras packages, maybe it will be available even earlier! Lots of info here and screenshots here!
Speaking of Fedore Core 5, there is a review of the latest devel freeze to be found at this O’Reilly site.